Sql server 将存储过程转换为使用日期CTE而不是单个日期

我有一个现有的存储过程，用于获取数据库系统的可用预订。我当前将当前日期作为属性传入，以显示特定日期的所有预订。我想做的是使用CTE作为查询的日期部分传入一个日期范围，这样我就可以获得完整范围内的所有预订，而不是仅一天

下面是我现有的存储过程：正如您在下面看到的，我在select语句和子查询中使用@CurrentDay属性。我如何使用文章底部的CTE，基本上是每个it，而不是使用当前传入的日期

            ALTER PROCEDURE [dbo].[GetUpcomingTrialSlots] 
                @LocationId int, 
                @CurrentDateTime datetime
            AS
            BEGIN


            declare @CurrentDay Date

            declare @WindowTimeStart DateTime

            set datefirst 1
            select @CurrentDay = CONVERT(date, @CurrentDateTime)
            select @WindowTimeStart = CONVERT(time,@CurrentDateTime)

            -- Day One
            SELECT * FROM
            (
            select  ts.id TimeSlotId,
                    @locationId LocationId,
                    @CurrentDay BookingDay,
                    datename(dw,DATEPART(dw, @CurrentDay)-1) DayOfWeek,
                    ts.StartTime,
                    COALESCE(
                        (select top 1 AvailableSlots 
                              FROM TrialTimeBlockOverride
                              where CONVERT(datetime, CAST(@CurrentDay AS DATETIME) + CAST(ts.EndTime AS DATETIME)) 
                              between 
                              CONVERT(datetime, CAST(OverrideStartDate AS DATETIME) + CAST(AltOpenTime AS DATETIME)) 
                              and 
                              CONVERT(datetime, CAST(OverrideEndDate AS DATETIME) + CAST(AltCloseTime AS DATETIME))     
                              and
                              LocationId = @LocationId          
                        )
                    , 
                        (select top 1 AvailableSlots from TrialTimeBlock where DayOfWeek = DATEPART(dw, @CurrentDay) 
                                and ts.StartTime >= starttime and ts.StartTime < endtime and LocationId = @LocationId)              
                    ) as AvailableSlots,
                    ts.EndTime,
                case   
                    when
                        EXISTS (select * from TrialTimeBlock where ts.StartTime >= StartTime and ts.StartTime < EndTime and LocationId = @LocationId  and DayOfWeek = datepart(dw, @CurrentDay)) THEN CAST(1 AS BIT)
                    else CAST(0 AS BIT)
                end as TrialSlot,
                case   
                    when
                        EXISTS (
                        SELECT *
                          FROM TrialTimeBlockOverride
                          where CONVERT(datetime, CAST(@CurrentDay AS DATETIME) + CAST(ts.StartTime AS DATETIME)) 
                          >= 
                          CONVERT(datetime, CAST(OverrideStartDate AS DATETIME) + CAST(AltOpenTime AS DATETIME)) 
                          and
                          CONVERT(datetime, CAST(@CurrentDay AS DATETIME) + CAST(ts.StartTime AS DATETIME)) 
                          <
                          CONVERT(datetime, CAST(OverrideEndDate AS DATETIME) + CAST(AltCloseTime AS DATETIME))     
                          and
                          LocationId = @LocationId  
                          and 
                          AvailableSlots = 0
                        ) THEN 0  /*This doesn't seem right to me */
                    else 1
                end as [TrialTimeAvailable],
                case   
                    when
                        EXISTS (
                        SELECT *
                        FROM OpeningHourOverride
                        where CONVERT(datetime, CAST(@CurrentDay AS DATETIME) + CAST(ts.StartTime AS DATETIME)) 
                        >= 
                        CONVERT(datetime, CAST(OverrideStartDate AS DATETIME) + CAST(AltOpenTime AS DATETIME))            
                        and 
                        CONVERT(datetime, CAST(@CurrentDay AS DATETIME) + CAST(ts.StartTime AS DATETIME))
                        < 
                        CONVERT(datetime, CAST(OverrideEndDate AS DATETIME) + CAST(AltCloseTime AS DATETIME))     
                        and
                        LocationId = @LocationId  
                        and 
                        AvailableSlots = 0
                        ) THEN 'Closed'  /*This doesn't seem right to me */
                    else 'Open'
                end as [OpenStatus],
                case   
                    when
                        (select count(*) from InitialAssessment where LocationId = @LocationId and TimeSlotId = ts.Id and AssessmentDate = @CurrentDay) > 1 THEN 'true'
                    else 'false'
                end as HasAssessment,
                (select count(*) from InitialAssessment where LocationId = @LocationId and TimeSlotId = ts.Id and AssessmentDate = @CurrentDay and IsFriendRecommendation is null) as AssessmentCount,
                case
                    when
                        EXISTS (
                        SELECT *
                        FROM OpeningHourOverride
                        where CONVERT(datetime, CAST(@CurrentDay AS DATETIME) + CAST(ts.StartTime AS DATETIME)) 
                        >= 
                        CONVERT(datetime, CAST(OverrideStartDate AS DATETIME) + CAST(AltOpenTime AS DATETIME))            
                        and 
                        CONVERT(datetime, CAST(@CurrentDay AS DATETIME) + CAST(ts.StartTime AS DATETIME))
                        < 
                        CONVERT(datetime, CAST(OverrideEndDate AS DATETIME) + CAST(AltCloseTime AS DATETIME))     
                        and
                        LocationId = @LocationId  
                        ) THEN 
                        (SELECT OverrideReason
                        FROM OpeningHourOverride
                        where CONVERT(datetime, CAST(@CurrentDay AS DATETIME) + CAST(ts.StartTime AS DATETIME)) 
                        >= 
                        CONVERT(datetime, CAST(OverrideStartDate AS DATETIME) + CAST(AltOpenTime AS DATETIME))            
                        and 
                        CONVERT(datetime, CAST(@CurrentDay AS DATETIME) + CAST(ts.StartTime AS DATETIME))
                        < 
                        CONVERT(datetime, CAST(OverrideEndDate AS DATETIME) + CAST(AltCloseTime AS DATETIME))     
                        and
                        LocationId = @LocationId)

                          /*This doesn't seem right to me */
                    else ''
                end as ClosureReason

            from    Timeslot ts
            left join   OpeningHour oh
                on  @locationId = oh.LocationId 
                and oh.DayOfWeek = DATEPART(dw, @CurrentDay)
            where   ts.StartTime >= oh.OpenTime 
            and     ts.EndTime < oh.CloseTime
            and     datepart(minute,ts.StartTime) = 0
            and     CAST(ts.StartTime as DateTime) > @WindowTimeStart 

            ) T WHERE TrialSlot = 1
            AND AssessmentCount <AvailableSlots
            And OpenStatus = 'Open'
            AND TrialTimeAvailable = 1
            order by 
            BookingDay,
            StartTime


            END

CTE示例SQL

 declare @StartDate date = '2017-01-01'
declare @EndDate date = '2017-01-10'

;WITH cte AS (
    SELECT @StartDate AS TrialDate
    UNION ALL
    SELECT DATEADD(day,1,TrialDate) as currentDate
    FROM cte
    WHERE DATEADD(day,1,TrialDate) <=  @EndDate
)

两个快速选项：

选项1-临时理货表

返回

RetSeq  RetVal
1       2017-01-01 00:00:00.000
2       2017-01-02 00:00:00.000
3       2017-01-03 00:00:00.000
4       2017-01-04 00:00:00.000
5       2017-01-05 00:00:00.000
6       2017-01-06 00:00:00.000
7       2017-01-07 00:00:00.000
8       2017-01-08 00:00:00.000
9       2017-01-09 00:00:00.000
10      2017-01-10 00:00:00.000

选项2：表值函数

提供更多选项：用户提供的日期/时间范围、日期部分和增量，并且比CTE更快。也易于合并到子查询和/或交叉应用

Declare @Date1 date = '2017-01-01'
Declare @Date2 date = '2017-01-10'
Select * from [dbo].[udf-Range-Date](@Date1,@Date2,'DD',1) 

返回

RetSeq  RetVal
1       2017-01-01 00:00:00.000
2       2017-01-02 00:00:00.000
3       2017-01-03 00:00:00.000
4       2017-01-04 00:00:00.000
5       2017-01-05 00:00:00.000
6       2017-01-06 00:00:00.000
7       2017-01-07 00:00:00.000
8       2017-01-08 00:00:00.000
9       2017-01-09 00:00:00.000
10      2017-01-10 00:00:00.000

UDF如果感兴趣

两个快速选项：

选项1-临时理货表

返回

RetSeq  RetVal
1       2017-01-01 00:00:00.000
2       2017-01-02 00:00:00.000
3       2017-01-03 00:00:00.000
4       2017-01-04 00:00:00.000
5       2017-01-05 00:00:00.000
6       2017-01-06 00:00:00.000
7       2017-01-07 00:00:00.000
8       2017-01-08 00:00:00.000
9       2017-01-09 00:00:00.000
10      2017-01-10 00:00:00.000

选项2：表值函数

提供更多选项：用户提供的日期/时间范围、日期部分和增量，并且比CTE更快。也易于合并到子查询和/或交叉应用

Declare @Date1 date = '2017-01-01'
Declare @Date2 date = '2017-01-10'
Select * from [dbo].[udf-Range-Date](@Date1,@Date2,'DD',1) 

返回

RetSeq  RetVal
1       2017-01-01 00:00:00.000
2       2017-01-02 00:00:00.000
3       2017-01-03 00:00:00.000
4       2017-01-04 00:00:00.000
5       2017-01-05 00:00:00.000
6       2017-01-06 00:00:00.000
7       2017-01-07 00:00:00.000
8       2017-01-08 00:00:00.000
9       2017-01-09 00:00:00.000
10      2017-01-10 00:00:00.000

UDF如果感兴趣

---

假设您可以将存储过程转换为TVF

Declare @Date1 date = '2017-01-01'
Declare @Date2 date = '2017-01-10'
Declare @LocationId int = 1

Select A.D  -- << Optional
      ,B.*
 From (Select Top (DateDiff(DD,@Date1,@Date2)+1) D=DateAdd(DD,-1+Row_Number() Over (Order By Number),@Date1) From  master..spt_values) A
 Cross Apply ( 
               Select * 
                From [dbo].[tvf_GetUpcomingTrialSlots](@LocationId,A.D) 
                Order By BookingDay,StartTime    
             ) B

---

假设您可以将存储过程转换为TVF

Declare @Date1 date = '2017-01-01'
Declare @Date2 date = '2017-01-10'
Declare @LocationId int = 1

Select A.D  -- << Optional
      ,B.*
 From (Select Top (DateDiff(DD,@Date1,@Date2)+1) D=DateAdd(DD,-1+Row_Number() Over (Order By Number),@Date1) From  master..spt_values) A
 Cross Apply ( 
               Select * 
                From [dbo].[tvf_GetUpcomingTrialSlots](@LocationId,A.D) 
                Order By BookingDay,StartTime    
             ) B

---

谢谢你…如果我不是100%清楚的话很抱歉。。我可以创建CTE没有问题，问题是如何获取该CTE并将其应用于当前仅使用一个日期的查询？@Christophertettigrew您是否希望运行存储过程N次？如果是这样，请将其转换为TVF，并通过交叉应用程序调用它…抱歉，如果am没有100%清除。。我可以创建CTE没有问题，问题是如何获取该CTE并将其应用于当前仅使用一个日期的查询？@Christophertettigrew您是否希望运行存储过程N次？如果是，将其转换为TVF并通过交叉应用调用