如何在日期显示表值

Question

表1

ID period fromdate todate Value

001 01/2012 02/01/2012 10/01/2012 AB
002 01/2012 05/01/2012 18/01/2012 AL
....

从上表中，我想显示明智的输出。

ID，期间应该从table1创建，然后剩余天数列应该从期间生成..

日期列应根据期间

创建

例如

01/2012 means - 31 days column
02/2012 means - 29 days column
04/2012 means - 30 days column

我想从table1

显示值明天

预期产出

id period 1 2 3 4 5 ...10 11 12 ..18 19 ....31  total (Column Header)

001 01/2012 N AB AB AB AB .... AB N N.... N  31
002 01/2012 N N N N AL....AL AL AL...AL N .....N 31

AL，AB应与table1匹配，剩余列应显示为N，total表示特定月份的总天数。

如何在sql server中执行此操作。

查询帮助期待...

Answer 1

您需要将日期格式调整为您的语言环境，但我使用SQL 2000（美国日期格式）：

create table Table1 (id varchar(3), period varchar(10), fromdate datetime, todate datetime, value varchar(2))
go
insert into Table1 values ('001','01/2012','1/2/2012','1/10/2012','AB')
insert into Table1 values ('002','01/2012','1/5/2012','1/18/2012','AL')
insert into Table1 values ('003','02/2012','2/10/2012','2/12/2012', 'DA')
go

select id
, period
, [1]=case when DATEADD(dd,0,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [2]=case when DATEADD(dd,1,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [3]=case when DATEADD(dd,2,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [4]=case when DATEADD(dd,3,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [5]=case when DATEADD(dd,4,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [6]=case when DATEADD(dd,5,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [7]=case when DATEADD(dd,6,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [8]=case when DATEADD(dd,7,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [9]=case when DATEADD(dd,8,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [10]=case when DATEADD(dd,9,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [11]=case when DATEADD(dd,10,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [12]=case when DATEADD(dd,11,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [13]=case when DATEADD(dd,12,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [14]=case when DATEADD(dd,13,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [15]=case when DATEADD(dd,14,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [16]=case when DATEADD(dd,15,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [17]=case when DATEADD(dd,16,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [18]=case when DATEADD(dd,17,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [19]=case when DATEADD(dd,18,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [20]=case when DATEADD(dd,19,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [21]=case when DATEADD(dd,20,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [22]=case when DATEADD(dd,21,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [23]=case when DATEADD(dd,22,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [24]=case when DATEADD(dd,23,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [25]=case when DATEADD(dd,24,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [26]=case when DATEADD(dd,25,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [27]=case when DATEADD(dd,26,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [28]=case when DATEADD(dd,27,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [29]=case when DATEADD(dd,28,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [30]=case when DATEADD(dd,29,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, [31]=case when DATEADD(dd,30,left(period,2)+'/01/'+right(period,4)) between fromdate and todate then value else 'N' end
, total=DATEDIFF(dd,left(period,2)+'/01/'+right(period,4),DATEADD(m,1,left(period,2)+'/01/'+right(period,4)))
from Table1
go

结果：

Answer 2

    DECLARE @Table1 TABLE(ID VARCHAR(3), Period VARCHAR(10), FromDate DATETIME, ToDate DATETIME, VALUE VARCHAR(2))

    INSERT INTO @Table1
    SELECT '001', '01/2012', '1/2/2012','1/10/2012', 'AB'
    UNION ALL
    SELECT '002', '01/2012', '1/5/2012', '01/18/2012', 'AL'
    UNION ALL
    SELECT '003', '02/2012', '2/10/2012', '02/18/2012', 'AX'


    ;WITH dates (ID, [Date], [Day], VALUE, Total) as (
        SELECT ID, CAST(REPLACE(r.Period,'/','/01/') AS DATETIME), 
        1, 
        CASE when CAST(REPLACE(r.Period,'/','/01/') AS DATETIME) BETWEEN FromDate AND r.ToDate THEN VALUE ELSE 'N' END ,
        day(dateadd(mm,datediff(mm,-1,fromDate),-1))  
        FROM @Table1 r
        UNION ALL
        SELECT d.ID, DATEADD(dd,1,[Date]) , 
        d.[Day] + 1,
        CASE when DATEADD(dd,1,[Date]) BETWEEN FromDate AND r.ToDate THEN r.VALUE ELSE 'N' END , 
        Total
        FROM dates d
        INNER JOIN @Table1 r on d.ID = r.ID
        WHERE [Day] < 31
    )

    select ID,[1]=MAX([1]) ,[2] = MAX([2]), [3]= MAX([3]), [4]= MAX([4]),[5]= MAX([5]), [6]= MAX([6]),[7]= MAX([7]),[8]= MAX([8]),[9]= MAX([9]),[10]= MAX([10]),
    [11]=MAX([11]) ,[12] = MAX([12]), [13]= MAX([13]), [14]= MAX([14]),[15]= MAX([15]), [16]= MAX([16]),[17]= MAX([17]),[18]= MAX([18]),[19]= MAX([19]),[20]= MAX([20]),
    [21]=MAX([21]) ,[22] = MAX([22]), [23]= MAX([23]), [24]= MAX([24]),[25]= MAX([25]), [26]= MAX([26]),[27]= MAX([27]),[28]= MAX([28]),[29]= MAX([29]),[30]= MAX([30]),
    [31]= MAX([31]), Total = MAX(total)
    from dates d
    PIVOT (MAX (d.Value) for [Day] in ([1],[2],[3],[4],[5],[6],[7],[8],[9],[10],[11],[12],[13],[14],[15]
                ,[16],[17],[18],[19],[20],[21],[22],[23],[24],[25],[26],[27],[28]
                ,[29],[30],[31])) as x 
    GROUP BY ID