初始期数，月结，库存
原表
期初收发期末
2010/7/18 12570012570.5mmx8-3/4吋x不锈钢卷片
2010/9/800 125700.5mmx8-3/4吋x不锈钢卷片
2010/9/280 3694036940.5mmx8-3/4吋x不锈钢卷片
2010/10/190094927450.5mmx8-3/4吋x不锈钢卷片
2010/10/230085018950.5mmx8-3/4吋x不锈钢卷片
2010/11/100 09439520.5mmx8-3/4吋x不锈钢卷片
我想要的是 这样。。
期初收发期末
2010/7/18 12570012570.5mmx8-3/4吋x不锈钢卷片
2010/9/812570 125700.5mmx8-3/4吋x不锈钢卷片
2010/9/280 3694036940.5mmx8-3/4吋x不锈钢卷片
2010/10/193697094927450.5mmx8-3/4吋x不锈钢卷片
2010/10/230085018950.5mmx8-3/4吋x不锈钢卷片
2010/11/101895 09439520.5mmx8-3/4吋x不锈钢卷片
2010/7/18 12570012570.5mmx8-3/4吋x不锈钢卷片
2010/9/112570 125712570.5mmx8-3/4吋x不锈钢卷片2010/9/800 125700.5mmx8-3/4吋x不锈钢卷片
2010/9/280 3694036940.5mmx8-3/4吋x不锈钢卷片
2010/10/1936940036940.5mmx8-3/4吋x不锈钢卷片
2010/10/190094927450.5mmx8-3/4吋x不锈钢卷片
2010/10/230085018950.5mmx8-3/4吋x不锈钢卷片
2010/11/011895 0018950.5mmx8-3/4吋x不锈钢卷片2010/11/100 09439520.5mmx8-3/4吋x不锈钢卷片
[解决办法]
CREATE TABLE [dbo].[test]( [id] [int] IDENTITY(1,1) NOT NULL, [riqi] [smalldatetime] NULL, [qichu] [int] NULL, [shou] [int] NULL, [fa] [int] NULL, [qimo] [int] NULL, [title] [varchar](50) NULL, CONSTRAINT [PK_test] PRIMARY KEY CLUSTERED ( [id] ASC)) ON [PRIMARY]--测试数据INSERT INTO test(riqi, qichu, shou, fa, qimo, title)VALUES (CONVERT(DATETIME, '2010/7/18', 102), 1257, 0, 0, 1257, '0.5mmx8-3/4吋x不锈钢卷片')INSERT INTO test(riqi, qichu, shou, fa, qimo, title)VALUES (CONVERT(DATETIME, '2010/9/8', 102), 0, 0, 1257, 0, '0.5mmx8-3/4吋x不锈钢卷片')INSERT INTO test(riqi, qichu, shou, fa, qimo, title)VALUES (CONVERT(DATETIME, '2010/9/28', 102), 0, 3694, 0, 3694, '0.5mmx8-3/4吋x不锈钢卷片')INSERT INTO test(riqi, qichu, shou, fa, qimo, title)VALUES (CONVERT(DATETIME, '2010/10/19', 102), 0, 0, 949, 2745, '0.5mmx8-3/4吋x不锈钢卷片')INSERT INTO test(riqi, qichu, shou, fa, qimo, title)VALUES (CONVERT(DATETIME, '2010/10/23', 102), 1, 0, 850, 1895, '0.5mmx8-3/4吋x不锈钢卷片')INSERT INTO test(riqi, qichu, shou, fa, qimo, title)VALUES (CONVERT(DATETIME, '2010/11/10', 102), 0, 0, 943, 952, '0.5mmx8-3/4吋x不锈钢卷片')--更新每月第一条记录的期初数（即前一次收发的期末数）--如果id排序与riqi排序不一致，可能会导致结果不正确。update [test]set qichu=(select top 1 qimo from [test] t2 where t2.id<test.id order by id desc)where id in( select id from ( SELECT [id],qimo, (select COUNT(1) from [test] t1 where t1.riqi<t.riqi and YEAR(t.riqi)=YEAR(t1.riqi) and MONTH(t.riqi)=MONTH(t1.riqi)) as st FROM [pay].[dbo].[test] t) b where st=0 and id>1 ) --插入月初记录--如果当月无任务记录则无法补充月初记录--找出每月第一条记录，判断是否为月初，不为月初时则返回月初记录值--将月初记录值插入到表中INSERT INTO test(riqi, qichu, shou, fa, qimo, title)select yuechu as riqi,((select top 1 qimo from [test] t2 where t2.riqi<d.yuechu order by id desc)) as qichu,0 as shou,0 as fa, ((select top 1 qimo from [test] t2 where t2.riqi<d.yuechu order by id desc)) as qimo,title from( select *,(select dateadd(d,-day(riqi)+1,riqi)) as yuechu from test where id in( select id from ( SELECT [id],qimo, (select COUNT(1) from [test] t1 where t1.riqi<t.riqi and YEAR(t.riqi)=YEAR(t1.riqi) and MONTH(t.riqi)=MONTH(t1.riqi)) as st FROM [pay].[dbo].[test] t) b where st=0 and id>1 )) d where riqi<>yuechu select * from test order by riqi id riqi qichu shou fa qimo title----------- ----------------------- ----------- ----------- ----------- ----------- --------------------------------------------------1 2010-07-18 00:00:00 1257 0 0 1257 0.5mmx8-3/4吋x不锈钢卷片2 2010-09-08 00:00:00 1257 0 1257 0 0.5mmx8-3/4吋x不锈钢卷片3 2010-09-28 00:00:00 0 3694 0 3694 0.5mmx8-3/4吋x不锈钢卷片4 2010-10-19 00:00:00 3694 0 949 2745 0.5mmx8-3/4吋x不锈钢卷片5 2010-10-23 00:00:00 1 0 850 1895 0.5mmx8-3/4吋x不锈钢卷片6 2010-11-01 00:00:00 1895 0 943 952 0.5mmx8-3/4吋x不锈钢卷片7 2010-09-01 00:00:00 1257 0 0 1257 0.5mmx8-3/4吋x不锈钢卷片8 2010-10-01 00:00:00 3694 0 0 3694 0.5mmx8-3/4吋x不锈钢卷片(8 行受影响) --drop table test
