Sql 如何在没有联合的情况下按日期范围分组_Sql_Sql Server_Tsql_Range_Union

Sql 如何在没有联合的情况下按日期范围分组

sql sql-server tsql

Sql 如何在没有联合的情况下按日期范围分组,sql,sql-server,tsql,range,union,Sql,Sql Server,Tsql,Range,Union,我有一个T-SQL查询（SQL2012），@START和@END是以前定义的 DECLARE @WEEK SMALLINT SET @WEEK = 7 WHILE @WEEK >= 0 BEGIN SELECT @START= (SELECT DATEADD( wk, -1, @START ) ) SELECT @END = (SELECT DATEADD( wk, -1, @END ) ) SELECT Visits.idPat

我有一个T-SQL查询（SQL2012），

@START

和

@END

是以前定义的

DECLARE @WEEK SMALLINT
SET @WEEK = 7

WHILE @WEEK >= 0
BEGIN  

    SELECT @START= (SELECT DATEADD( wk, -1, @START ) ) 
    SELECT @END  = (SELECT DATEADD( wk, -1, @END   ) ) 

    SELECT
        Visits.idPatient,
        Visits.VDay,
        tblScheduledOrder.SDay
    FROM
        tblScheduledOrder
        LEFT OUTER JOIN
        (
            SELECT
                DATEPART( dw, VDate ) - 1 AS VDay,
                idPatient
            FROM
                tblVisits
            WHERE
                ( VDate >= @START ) AND
                ( VDate <= @END )
        ) AS Visits
            ON tblScheduledOrder.idPatient = Visits.idPatient 

    SELECT @WEEK = @WEEK - 1
END

实际结果

--First resultset-----
|idPati SDay    VDay |
|11     1       1    |
|12     2       2    |
|13     2       3    |
|14     3       3    |
|15     4       4    |
|16     4       5    |
--Second resulset-----
|11     1       1    |
|12     2       2    |
|13     2       3    |
|14     3       NULL |
|15     4       5    |
|16     4       5    |
----------------------

要求的结果

--Single resultset-----
|idPati SDay    VDay |
|11     1       1    |
|12     2       2    |
|13     2       3    |
|14     3       3    |
|15     4       4    |
|16     4       5    |
|11     1       1    |
|12     2       2    |
|13     2       3    |
|14     3       NULL |
|15     4       5    |
|16     4       5    |
----------------------

我尝试了一个解决方案，但无法使我的结果与问题相一致，于是停止了。也许其他人可以更进一步。看到这个了吗

查询1：

declare @end as date
-- calculate "next" Monday
set @end = dateadd(d,-(datediff(d,0,getdate()) % 7)+7 ,cast(getdate() as date))
declare @start as date
set @start = dateadd(wk,-8,@end)
;with drange as (
  select @start as dt, datepart(dw,@start) dw
  union all
  select dateadd(d,1,dt) , datepart(dw,dateadd(d,1,dt))
  from drange
  where dateadd(d,1,dt) <= @end
  )
, p as (
  select 
         SDay
       , idPatient
       , dateadd(d,SDay-1,dateadd(d,-datediff(d,0,getdate()) % 7,cast(getdate() as date))) Ndate
  from tblScheduledOrder
  )  
select 
     dt, dw, p.Sday, vdate, ndate, coalesce(v.idpatient,p.idPatient) idpatient
from drange
left join tblVisits v on drange.dt = v.Vdate
left join p on drange.dt = p.Ndate
where drange.dw between 1 and 5
order by dt DESC, coalesce(v.idpatient,p.idPatient)

|         dt | dw |   Sday |      vdate |      ndate | idpatient |
|------------|----|--------|------------|------------|-----------|
| 2018-04-02 |  2 | (null) |     (null) |     (null) |    (null) |
| 2018-04-01 |  1 | (null) |     (null) |     (null) |    (null) |
| 2018-03-29 |  5 |      4 | 2018-03-29 | 2018-03-29 |        15 |
| 2018-03-29 |  5 |      4 | 2018-03-29 | 2018-03-29 |        15 |
| 2018-03-29 |  5 |      4 | 2018-03-29 | 2018-03-29 |        16 |
| 2018-03-29 |  5 |      4 | 2018-03-29 | 2018-03-29 |        16 |
| 2018-03-28 |  4 |      3 |     (null) | 2018-03-28 |        14 |
| 2018-03-27 |  3 |      2 | 2018-03-27 | 2018-03-27 |        13 |
| 2018-03-27 |  3 |      2 | 2018-03-27 | 2018-03-27 |        13 |
| 2018-03-26 |  2 |      1 | 2018-03-26 | 2018-03-26 |        12 |
| 2018-03-25 |  1 | (null) | 2018-03-25 |     (null) |        11 |
| 2018-03-22 |  5 | (null) | 2018-03-22 |     (null) |        16 |
| 2018-03-21 |  4 | (null) | 2018-03-21 |     (null) |        15 |
| 2018-03-20 |  3 | (null) | 2018-03-20 |     (null) |        13 |
| 2018-03-20 |  3 | (null) | 2018-03-20 |     (null) |        14 |
| 2018-03-19 |  2 | (null) | 2018-03-19 |     (null) |        12 |
| 2018-03-18 |  1 | (null) | 2018-03-18 |     (null) |        11 |
| 2018-03-15 |  5 | (null) |     (null) |     (null) |    (null) |
| 2018-03-14 |  4 | (null) |     (null) |     (null) |    (null) |
| 2018-03-13 |  3 | (null) |     (null) |     (null) |    (null) |
| 2018-03-12 |  2 | (null) |     (null) |     (null) |    (null) |
| 2018-03-11 |  1 | (null) |     (null) |     (null) |    (null) |
| 2018-03-08 |  5 | (null) |     (null) |     (null) |    (null) |
| 2018-03-07 |  4 | (null) |     (null) |     (null) |    (null) |
| 2018-03-06 |  3 | (null) |     (null) |     (null) |    (null) |
| 2018-03-05 |  2 | (null) |     (null) |     (null) |    (null) |
| 2018-03-04 |  1 | (null) |     (null) |     (null) |    (null) |
| 2018-03-01 |  5 | (null) |     (null) |     (null) |    (null) |
| 2018-02-28 |  4 | (null) |     (null) |     (null) |    (null) |
| 2018-02-27 |  3 | (null) |     (null) |     (null) |    (null) |
| 2018-02-26 |  2 | (null) |     (null) |     (null) |    (null) |
| 2018-02-25 |  1 | (null) |     (null) |     (null) |    (null) |
| 2018-02-22 |  5 | (null) |     (null) |     (null) |    (null) |
| 2018-02-21 |  4 | (null) |     (null) |     (null) |    (null) |
| 2018-02-20 |  3 | (null) |     (null) |     (null) |    (null) |
| 2018-02-19 |  2 | (null) |     (null) |     (null) |    (null) |
| 2018-02-18 |  1 | (null) |     (null) |     (null) |    (null) |
| 2018-02-15 |  5 | (null) |     (null) |     (null) |    (null) |
| 2018-02-14 |  4 | (null) |     (null) |     (null) |    (null) |
| 2018-02-13 |  3 | (null) |     (null) |     (null) |    (null) |
| 2018-02-12 |  2 | (null) |     (null) |     (null) |    (null) |
| 2018-02-11 |  1 | (null) |     (null) |     (null) |    (null) |
| 2018-02-08 |  5 | (null) |     (null) |     (null) |    (null) |
| 2018-02-07 |  4 | (null) |     (null) |     (null) |    (null) |
| 2018-02-06 |  3 | (null) |     (null) |     (null) |    (null) |
| 2018-02-05 |  2 | (null) |     (null) |     (null) |    (null) |

问题是如何将所有这些都整合到一个结果集中，不是吗？使用临时表来存储循环结果，而不是使用应用程序。然后让应用程序从临时表中提取数据。（您可以使用常规表或#诱惑表。您只需要一个存放中间数据集的地方。）

DECLARE@tblPlaceHolder表(
Idpient BIGINT，
维迪·廷因特，
星期四，
第二周；
插入@tblPlaceHolder(
国内流离失所者，
星期五，
星期四，
（星期）
挑选
探视病人，
访问www.VDay，
tblScheduledOrder.SDay，
@每周-请提供样本数据和预期结果<代码>分组依据

以聚合值，但根据您的需求，您将显示所有访问以及实际访问date@maSTAShuFu是的，输出是计划的日期，在实际访问的同时，请访问

sqlfiddle.com

或

rextester.com

并弄脏您的数据。我认为，与其想出笨拙的方法来弯曲数据，不如以适合您使用的方式存储数据。当患者未在该周就诊时，开始在tblVisits中存储空条目，或者在tblScheduledOrder中存储每个患者每周的实际日期。如果存储了这些数据，您可以使用简单的JOIN@JackyCheng没错，但这需要一些应用程序每周在表上进行插入。有1.5万名患者，所以我猜这只是浪费了空间。。。也许我会重新考虑它的未来版本。现在，它需要以现在的方式解决。好主意，创建一个带有预期日期的动态tble，并将其与实际日期连接起来。我会把它标记为答案。几乎没有一种最好的方法可以做任何事情。但是，如果没有其他方法对你有效，而这是有效的，那么这可能是一个足够好的方法。

declare @end as date
-- calculate "next" Monday
set @end = dateadd(d,-(datediff(d,0,getdate()) % 7)+7 ,cast(getdate() as date))
declare @start as date
set @start = dateadd(wk,-8,@end)
;with drange as (
  select @start as dt, datepart(dw,@start) dw
  union all
  select dateadd(d,1,dt) , datepart(dw,dateadd(d,1,dt))
  from drange
  where dateadd(d,1,dt) <= @end
  )
, p as (
  select 
         SDay
       , idPatient
       , dateadd(d,SDay-1,dateadd(d,-datediff(d,0,getdate()) % 7,cast(getdate() as date))) Ndate
  from tblScheduledOrder
  )  
select 
     dt, dw, p.Sday, vdate, ndate, coalesce(v.idpatient,p.idPatient) idpatient
from drange
left join tblVisits v on drange.dt = v.Vdate
left join p on drange.dt = p.Ndate
where drange.dw between 1 and 5
order by dt DESC, coalesce(v.idpatient,p.idPatient)

|         dt | dw |   Sday |      vdate |      ndate | idpatient |
|------------|----|--------|------------|------------|-----------|
| 2018-04-02 |  2 | (null) |     (null) |     (null) |    (null) |
| 2018-04-01 |  1 | (null) |     (null) |     (null) |    (null) |
| 2018-03-29 |  5 |      4 | 2018-03-29 | 2018-03-29 |        15 |
| 2018-03-29 |  5 |      4 | 2018-03-29 | 2018-03-29 |        15 |
| 2018-03-29 |  5 |      4 | 2018-03-29 | 2018-03-29 |        16 |
| 2018-03-29 |  5 |      4 | 2018-03-29 | 2018-03-29 |        16 |
| 2018-03-28 |  4 |      3 |     (null) | 2018-03-28 |        14 |
| 2018-03-27 |  3 |      2 | 2018-03-27 | 2018-03-27 |        13 |
| 2018-03-27 |  3 |      2 | 2018-03-27 | 2018-03-27 |        13 |
| 2018-03-26 |  2 |      1 | 2018-03-26 | 2018-03-26 |        12 |
| 2018-03-25 |  1 | (null) | 2018-03-25 |     (null) |        11 |
| 2018-03-22 |  5 | (null) | 2018-03-22 |     (null) |        16 |
| 2018-03-21 |  4 | (null) | 2018-03-21 |     (null) |        15 |
| 2018-03-20 |  3 | (null) | 2018-03-20 |     (null) |        13 |
| 2018-03-20 |  3 | (null) | 2018-03-20 |     (null) |        14 |
| 2018-03-19 |  2 | (null) | 2018-03-19 |     (null) |        12 |
| 2018-03-18 |  1 | (null) | 2018-03-18 |     (null) |        11 |
| 2018-03-15 |  5 | (null) |     (null) |     (null) |    (null) |
| 2018-03-14 |  4 | (null) |     (null) |     (null) |    (null) |
| 2018-03-13 |  3 | (null) |     (null) |     (null) |    (null) |
| 2018-03-12 |  2 | (null) |     (null) |     (null) |    (null) |
| 2018-03-11 |  1 | (null) |     (null) |     (null) |    (null) |
| 2018-03-08 |  5 | (null) |     (null) |     (null) |    (null) |
| 2018-03-07 |  4 | (null) |     (null) |     (null) |    (null) |
| 2018-03-06 |  3 | (null) |     (null) |     (null) |    (null) |
| 2018-03-05 |  2 | (null) |     (null) |     (null) |    (null) |
| 2018-03-04 |  1 | (null) |     (null) |     (null) |    (null) |
| 2018-03-01 |  5 | (null) |     (null) |     (null) |    (null) |
| 2018-02-28 |  4 | (null) |     (null) |     (null) |    (null) |
| 2018-02-27 |  3 | (null) |     (null) |     (null) |    (null) |
| 2018-02-26 |  2 | (null) |     (null) |     (null) |    (null) |
| 2018-02-25 |  1 | (null) |     (null) |     (null) |    (null) |
| 2018-02-22 |  5 | (null) |     (null) |     (null) |    (null) |
| 2018-02-21 |  4 | (null) |     (null) |     (null) |    (null) |
| 2018-02-20 |  3 | (null) |     (null) |     (null) |    (null) |
| 2018-02-19 |  2 | (null) |     (null) |     (null) |    (null) |
| 2018-02-18 |  1 | (null) |     (null) |     (null) |    (null) |
| 2018-02-15 |  5 | (null) |     (null) |     (null) |    (null) |
| 2018-02-14 |  4 | (null) |     (null) |     (null) |    (null) |
| 2018-02-13 |  3 | (null) |     (null) |     (null) |    (null) |
| 2018-02-12 |  2 | (null) |     (null) |     (null) |    (null) |
| 2018-02-11 |  1 | (null) |     (null) |     (null) |    (null) |
| 2018-02-08 |  5 | (null) |     (null) |     (null) |    (null) |
| 2018-02-07 |  4 | (null) |     (null) |     (null) |    (null) |
| 2018-02-06 |  3 | (null) |     (null) |     (null) |    (null) |
| 2018-02-05 |  2 | (null) |     (null) |     (null) |    (null) |

Declare  @StartDate  DateTime  ='20180301' 
Declare  @EndDate  DateTime    ='20180330' 

DECLARE @NotVisitedPatients table ( idPatient Int  ,Sday INT , Vdate Date,Vday int ,WeekNumber INT )
DECLARE @WeekNumber table ( Id Int identity (1,1) ,WeekNumber INT )

INSERT INTO @WeekNumber
SELECT  distinct
DATEPART(Week ,V.[VDate])
FROM [dbo].[tblVisits] V 
inner  join [dbo].[tblScheduledOrder] S  on V.idPatient =  S.idPatient
where V.[VDate] between @StartDate and @EndDate 

declare @Total int = (select Max(Id) from  @WeekNumber)
declare @count  int =1
declare @week  int = 0 

WHILE (@Total >= @count)
BEGIN  
set  @week =(select WeekNumber from @WeekNumber where  id =@count)
print @week
INSERT INTO @NotVisitedPatients
           (idPatient
           ,Sday
           ,Vdate
           ,Vday
           ,WeekNumber)
select distinct  S.idPatient ,S.Sday ,null,null, @week from tblScheduledOrder S
where  S.idPatient  not in (select V.idPatient   from tblVisits V  
where DATEPART(Week ,V.[VDate]) = @week)
set @count =@count +1 
END

select  idPatient   ,Sday , Vdate,Vday  ,WeekNumber  from @NotVisitedPatients
Union 
SELECT  distinct S.idPatient
       ,S.Sday  
       ,V.[VDate]      
      , DATEPART(DW ,V.[VDate]) As VDay    
      , DATEPART(Week ,V.[VDate]) As WeekNumber
  FROM [dbo].[tblVisits] V 
  inner  join [dbo].[tblScheduledOrder] S  on V.idPatient =  S.idPatient
where V.[VDate] between @StartDate and @EndDate

DECLARE @tblPlaceHolder TABLE (
  idPatient BIGINT,
  VDay TINYINT,
  SDay TINYINT,
  Week SMALLINT);

<Your existing loop code except add this:  >
  INSERT INTO @tblPlaceHolder (
    idPatient,
    VDay,
    SDay,
    Week)
  SELECT
    Visits.idPatient,
    Visits.VDay,
    tblScheduledOrder.SDay,
    @WEEK AS Week    --<-------Addition to SELECT
  FROM
    tblScheduledOrder
    LEFT OUTER JOIN....

<The rest of your loop code>

    SELECT @WEEK = @WEEK - 1
END  

SELECT 
  idPatient,
  SDay,
  VDay
FROM 
  @tblPlaceHolder
ORDER BY
  Week DESC, --Not needed in the result set. Just to sort by.
  SDay,
  idPatient;