问一个,按日期统计点击数的问题...

[fashman]

select * from ad_hits where ad_id = '131' and year(hits_date) = '2006' and
month(hits_date) = '6' order by hits_date
======================================================
用上面的搜索语句,得到下面的结果..
131 2006-06-01 00:00:00 1
131 2006-06-02 00:00:00 2
131 2006-06-03 00:00:00 1
131 2006-06-05 00:00:00 2
131 2006-06-06 00:00:00 5
131 2006-06-07 00:00:00 1
131 2006-06-10 00:00:00 1
131 2006-06-14 00:00:00 2
==================================
我想得到这样的结果..
131 2006-06-01 00:00:00 1
131 2006-06-02 00:00:00 2
131 2006-06-03 00:00:00 1
131 2006-06-04 00:00:00 0
131 2006-06-05 00:00:00 2
131 2006-06-06 00:00:00 5
131 2006-06-07 00:00:00 1
131 2006-06-08 00:00:00 0
131 2006-06-09 00:00:00 0
131 2006-06-10 00:00:00 1
131 2006-06-11 00:00:00 0
131 2006-06-12 00:00:00 0
131 2006-06-13 00:00:00 0
131 2006-06-14 00:00:00 2

就是,如果当天的点击数为O则自动列出为0记录...

[fashman]

那个记录数据库里面没有,能不能用sql语句给补上??

[fcuandy]

--生成测试数据
DECLARE @tb TABLE(ID INT,YourDate DATETIME,NUM INT)
INSERT @tb
SELECT
131, '2006-06-01 00:00:00' ,1
UNION SELECT
131, '2006-06-02 00:00:00' ,2
UNION SELECT
131, '2006-06-03 00:00:00' ,1
UNION SELECT
131, '2006-06-05 00:00:00' ,2
UNION SELECT
131, '2006-06-06 00:00:00' ,5
UNION SELECT
131, '2006-06-07 00:00:00' ,1
UNION SELECT
131, '2006-06-10 00:00:00' ,1
UNION SELECT
131, '2006-06-14 00:00:00' ,2


--生成临时数据
DECLARE @MinDate Datetime,@MaxDate Datetime
SELECT @MinDate=MIN(YourDate),@MaxDate=MAX(YourDate) FROM @tb
DECLARE @Tmp Table(Num1 INT,TmpDate DateTime,Num2 INT)
WHILE @MinDate<@MaxDate
BEGIN
INSERT @Tmp VALUES(131,DATEADD(dd,1,@MinDate),0)
SET @MinDate=DATEADD(dd,1,@MinDate)
END

--显示所需结果
SELECT * FROM @tb
UNION
SELECT * FROM @Tmp WHERE TmpDate NOT IN(SELECT YourDate FROM @tb)

[paoluo]

Create Table ad_hits
(ad_id Varchar(3),
hits_date DateTime,
hits Int)
Insert ad_hits Select '131', '2006-06-01 00:00:00', 1
Union All Select'131', '2006-06-02 00:00:00', 2
Union All Select'131', '2006-06-03 00:00:00', 1
Union All Select'131', '2006-06-05 00:00:00', 2
Union All Select'131', '2006-06-06 00:00:00', 5
Union All Select'131', '2006-06-07 00:00:00', 1
Union All Select'131', '2006-06-10 00:00:00', 1
Union All Select'131', '2006-06-14 00:00:00', 2
GO
Select TOP 31 ID=Identity(Int,1,1) Into # From syscolumns,SysObjects

Select Distinct
IsNull(A.ad_id,'131') As ad_id,
B.hits_date,
IsNull(hits,0) As hits
From
(Select DateAdd(dd,ID-1,(Select Min(hits_date) From ad_hits)) As hits_date From #) B
Left Join
ad_hits A
On A.hits_date=B.hits_date
And ad_id = '131' and year(A.hits_date) = '2006' and month(A.hits_date) = '6'
Where B.hits_date<=(Select Max(hits_date) From ad_hits)
order by B.hits_date
GO
Drop Table ad_hits,#
--Result
/*
ad_id hits_date hits
131 2006-06-01 00:00:00.000 1
131 2006-06-02 00:00:00.000 2
131 2006-06-03 00:00:00.000 1
131 2006-06-04 00:00:00.000 0
131 2006-06-05 00:00:00.000 2
131 2006-06-06 00:00:00.000 5
131 2006-06-07 00:00:00.000 1
131 2006-06-08 00:00:00.000 0
131 2006-06-09 00:00:00.000 0
131 2006-06-10 00:00:00.000 1
131 2006-06-11 00:00:00.000 0
131 2006-06-12 00:00:00.000 0
131 2006-06-13 00:00:00.000 0
131 2006-06-14 00:00:00.000 2
*/

[losedxyz]

mark

[fashman]

谢谢弟兄们的帮忙..结贴...