SQL语句 - MS-SQL Server / 疑难问题

表

进货日期 货物编码
2010-01-01 001
2010-01-02 002
2010-05-01 001
2010-05-02 004
2010-05-04 001


求SQL语句:查询表中连续3日(或N日,截止日期为当前日期)未进货的货物编码

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是查最近3天未进货的，还是存在连续3天未进货的？

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最近n天为进货好做 连续n天为进货不好做 
楼主说清楚点

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看看top

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select * from 表 where (进货日期 BETWEEN GETDATE() - 3 AND GETDATE()) and 货物编码='001'

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--在查询区间内,连续3天没有进货的货物编码
SQL code:

CREATE TABLE [进货表]
(
[进货日期] DATETIME
,[货物编码] VARCHAR(10)
)
GO
INSERT INTO [进货表] VALUES ('2010-01-01', '001')
INSERT INTO [进货表] VALUES ('2010-01-02', '002')
INSERT INTO [进货表] VALUES ('2010-05-01', '001')
INSERT INTO [进货表] VALUES ('2010-05-02', '004')
INSERT INTO [进货表] VALUES ('2010-05-04', '001')
GO

DECLARE @BeginDate DATETIME
,@EndDate DATETIME
,@Day INT

SET @BeginDate = '2010-05-01'
SET @EndDate = '2010-05-08'
SET @Day = 3 --设置连续天数


;WITH CTE
AS
(
SELECT [进货日期]
,[货物编码]
,ROW_NUMBER() OVER(PARTITION BY [货物编码] ORDER BY [进货日期]) AS px1
from (
SELECT [进货日期]
,[货物编码]
from [进货表]