sql - 存储过程返回一个 int

Question

嗨，我在 SQL Server 2005 中有以下存储过程:

ALTER PROCEDURE [dbo].[slot_sp_EngineerTimeslots_Group]
    @PROPREF        VARCHAR(50),    
    @PRIORITYCODE   VARCHAR(3),
    @JOBLENGTH      INT = 0,
    @TIMESLOT       VARCHAR(3)  

AS

SET NOCOUNT ON

    DECLARE @TOTALDAYS          INT
    DECLARE @TOTALDAYSTARGET    INT
    DECLARE @COUNTER            INT
    DECLARE @STARTTIME          DATETIME
    DECLARE @MIDDAYTIME         DATETIME
    DECLARE @ENDTIME            DATETIME
    DECLARE @STARTDATE          DATETIME
    DECLARE @iSTARTDATE         DATETIME
    DECLARE @CONTRACT           VARCHAR(10)

    SET @iSTARTDATE = GETDATE()
    SET @STARTDATE = CONVERT(DATETIME,CONVERT(VARCHAR(10),@iSTARTDATE,120) + ' 00:00:00',120)

    SELECT @CONTRACT = CONTRACT FROM [tbl_property] WHERE [PROPREF] = @PROPREF

-- Get the contract Start/MidDay/End times
Select 
    @STARTTIME = CONVERT(VARCHAR(10), @STARTDATE, 120) + ' ' + CONVERT(VARCHAR(5), ContractStartTime, 108),
    @MIDDAYTIME = CONVERT(VARCHAR(10), @STARTDATE, 120) + ' ' + CONVERT(VARCHAR(5), ContractMiddayTime, 108), 
    @ENDTIME = CONVERT(VARCHAR(10), @STARTDATE, 120) + ' ' + CONVERT(VARCHAR(5), ContractEndTime, 108) 
From 
    [tbl_contract]
WHERE 
    [tbl_contract].[CONTRACT]=@CONTRACT     

-- Get Priority Times
Select 
    @TOTALDAYS =
        CASE 
            WHEN ROUND(NEARCOMPLETEDURATION/24,0) < NEARCOMPLETEDURATION/24 THEN ROUND(NEARCOMPLETEDURATION/24,0) + 1
            ELSE ROUND(NEARCOMPLETEDURATION/24,0) 
        END,
    @TOTALDAYSTARGET =
        CASE 
            WHEN ROUND(COMPLETEDURATION/24,0) < COMPLETEDURATION/24 THEN ROUND(COMPLETEDURATION/24,0) + 1
            ELSE ROUND(COMPLETEDURATION/24,0)  
        END 
FROM [ltbl_order_priority]
WHERE
    [ltbl_order_priority].[CONTRACT] = @CONTRACT
AND [ltbl_order_priority].[PRIORITYCODE] = @PRIORITYCODE

-- Not sure what this is for yet butits going to be fun!
SET @COUNTER = 0

BEGIN

--Create Temp Table

CREATE TABLE 
    #TempEngineer 
        (
            TempEngineer varchar(30), 
            BookedDate DateTime, 
            BookedFromTime DateTime, 
            BookedToTime DateTime, 
            TotalDays INT,  
            JobMins INT, 
            MinPMTime DateTime, 
            BTime DATETIME
        )

While (@COUNTER <= @TOTALDAYS)
    Begin
--Get details of active engineers from engineer table

    INSERT #TempEngineer 
            SELECT   
                    dbo.tbl_engineer.ENGINEER AS Engineer, 
                    @STARTDATE AS StartDate, 
                    CASE
                        WHEN ISNULL(dbo.tbl_engineer.STARTTIME,'') = '' THEN CONVERT(VARCHAR(10), @STARTDATE, 120) + ' ' + CONVERT(VARCHAR(5), @STARTTIME, 108) 
                        ELSE CONVERT(VARCHAR(10), @STARTDATE, 120) + ' ' + CONVERT(VARCHAR(5), dbo.tbl_engineer.STARTTIME, 108)
                    END AS StartTime,
                    CASE
                        WHEN ISNULL( dbo.tbl_engineer.ENDTIME,'') = '' THEN CONVERT(VARCHAR(10), @STARTDATE, 120) + ' ' + CONVERT(VARCHAR(5), @ENDTIME, 108)
                        ELSE CONVERT(VARCHAR(10), @STARTDATE, 120) + ' ' + CONVERT(VARCHAR(5), dbo.tbl_engineer.ENDTIME, 108)
                    END AS EndTime, 
                    @TOTALDAYS AS TotalDays, 
                    NULL AS JobMins,
                    NULL AS MinPMTime,
                    NULL AS BTime
            FROM    dbo.tbl_engineer 
            WHERE   dbo.tbl_engineer.ACTIVE = 1
            AND     Engineer NOT IN (SELECT Engineer    
                    FROM  slot_tbl_Schedule  
                    WHERE      bookedDate <= DATEADD(DAY, @TOTALDAYS, @STARTDATE)
                    AND        bookedDate >= @STARTDATE)


--Get Details of Free time form schedule table              
    INSERT #TempEngineer 
            SELECT     
                    slot_tbl_Schedule.Engineer AS Engineer, 
                    slot_tbl_Schedule.BookedDate AS BookDate,
                    slot_tbl_Schedule.FromTime AS FromTime, 
                    ISNULL(slot_tbl_Schedule.ToTime, CONVERT(VARCHAR(10), @STARTDATE, 120) + ' ' + CONVERT(VARCHAR(5), ENDTIME, 108)) AS ToTime, 
                    @TOTALDAYS AS TotalDays, 
                    NULL AS JobMins,
                    NULL AS MinPMTime,
                    NULL AS BTime

            FROM       
                    (
                        SELECT     
                                Engineer, 
                                BookedDate, 
                                ToTime AS FromTime,
                                (SELECT     MIN(fromTime) FROM slot_tbl_Schedule x WHERE x.engineer = s1.engineer AND x.bookedDate = s1.bookedDate AND x.fromTime >= s1.ToTime) AS ToTime 
                        FROM    slot_tbl_Schedule s1 
                        WHERE   CONVERT(DATETIME,CONVERT(VARCHAR(10),bookedDate,120),120) =  @STARTDATE 

                        UNION ALL 

                        SELECT     e2.Engineer, s2.BookedDate,  CONVERT(VARCHAR(10), @STARTDATE, 120) + ' ' + CONVERT(VARCHAR(5), e2.StartTime, 114) AS FromTime, MIN(s2.FromTime) AS ToTime 
                        FROM       tbl_engineer e2 INNER JOIN slot_tbl_Schedule s2 ON s2.engineer = e2.engineer                     
                        WHERE      CONVERT(DATETIME,CONVERT(VARCHAR(10),s2.bookedDate,120),120) =  @STARTDATE   
                        GROUP BY   e2.Engineer, s2.BookedDate, e2.StartTime 
                        HAVING     MIN(s2.FromTime) > e2.StartTime
                    )

                slot_tbl_Schedule INNER JOIN dbo.tbl_engineer engineer ON engineer.ENGINEER = slot_tbl_Schedule.Engineer 

        Select @COUNTER = @COUNTER + 1
        Select @STARTDATE = DATEADD(Day, 1, @STARTDATE)


    END -- While End

END -- Temp Table End

--Data from above select statements which is in the temp table  
--
CREATE TABLE 
    #TempEngineerGroup 
        (
            AppointmentType VARCHAR(50),
            BookedDate DateTime, 
            BookedFromTime DateTime, 
            BookedToTime DateTime, 
            TotalDays INT,  
            JobMins INT
        )

IF @TIMESLOT = 'AM'
            INSERT INTO [#TempEngineerGroup] 
            SELECT  'FreeTime' AS [AppointmentType], BookedDate, BookedFromTime, BookedToTime, TotalDays, DATEDIFF(mi,BookedFromTime, BookedToTime) AS [JobMins]
            FROM #TempEngineer 
            WHERE (DATEDIFF(mi,BookedFromTime, BookedToTime) >= @JOBLENGTH) 
                AND (DATEDIFF(mi,BookedFromTime, BookedToTime) < 600) 
                AND BookedFromTime < CONVERT(DATETIME,CONVERT(VARCHAR(10), BookedFromTime, 120) + ' ' + CONVERT(VARCHAR(5), @MIDDAYTIME, 114),120)

            UNION

            SELECT [slot_tbl_Schedule].[AppointmentType],[slot_tbl_Schedule].[BookedDate],[slot_tbl_Schedule].[FromTime],[slot_tbl_Schedule].[ToTime],0,[slot_tbl_Schedule].[JobMins]
            FROM [slot_tbl_Schedule]
            INNER JOIN [#TempEngineer] ON [slot_tbl_Schedule].[Engineer] = [#TempEngineer].[TempEngineer]
            WHERE [slot_tbl_Schedule].[BookedDate] BETWEEN @iSTARTDATE AND DATEADD(dd,@TOTALDAYS,@iSTARTDATE)
            ORDER BY BookedFromTime

IF @TIMESLOT = 'AT'
            INSERT INTO [#TempEngineerGroup] 
            SELECT 'FreeTime' AS [AppointmentType], BookedDate, BookedFromTime, BookedToTime, TotalDays, DATEDIFF(mi,BookedFromTime, BookedToTime) AS JobMins 
            FROM #TempEngineer 
            WHERE (DATEDIFF(mi,BookedFromTime, BookedToTime) >= @JOBLENGTH) 
                AND (DATEDIFF(mi,BookedFromTime, BookedToTime) < 600) 

            UNION

            SELECT [slot_tbl_Schedule].[AppointmentType], [slot_tbl_Schedule].[BookedDate],[slot_tbl_Schedule].[FromTime],[slot_tbl_Schedule].[ToTime],0,[slot_tbl_Schedule].[JobMins]
            FROM [slot_tbl_Schedule]
            INNER JOIN [#TempEngineer] ON [slot_tbl_Schedule].[Engineer] = [#TempEngineer].[TempEngineer]
            WHERE [slot_tbl_Schedule].[BookedDate] BETWEEN @iSTARTDATE AND DATEADD(dd,@TOTALDAYS,@iSTARTDATE)
            ORDER BY BookedFromTime

IF @TIMESLOT = 'PM'
            INSERT INTO [#TempEngineerGroup] 
            SELECT 'FreeTime' AS [AppointmentType], BookedDate, BookedFromTime, BookedToTime, TotalDays, DATEDIFF(mi,BookedFromTime, BookedToTime) AS JobMins
            FROM (
                    SELECT TempEngineer, BookedDate, BookedFromTime AS BTime, BookedToTime, TotalDays, JobMins, MinPMTime,
                            CASE
                                WHEN BookedFromTime >=  CONVERT(DATETIME,CONVERT(VARCHAR(10), BookedFromTime, 120) + ' ' + CONVERT(VARCHAR(5), @MIDDAYTIME, 114),120) Then BookedFromTime
                                WHEN BookedFromTime <  CONVERT(DATETIME,CONVERT(VARCHAR(10), BookedFromTime, 120) + ' ' + CONVERT(VARCHAR(5), @MIDDAYTIME, 114),120) Then MinPMTime
                            END AS BookedFromTime
                    FROM (
                            SELECT  TempEngineer, BookedDate, BookedFromTime, BookedToTime, TotalDays, DATEDIFF(mi,BookedFromTime, BookedToTime) AS JobMins,
                                    max(CASE WHEN BookedFromTime < CONVERT(DATETIME,CONVERT(VARCHAR(10), BookedFromTime, 120) + ' ' + CONVERT(VARCHAR(5), @MIDDAYTIME, 114),120) AND IsNull(PMAppointments, 0) >= 0 THEN CONVERT(DATETIME,CONVERT(VARCHAR(10), BookedFromTime, 120) + ' ' + CONVERT(VARCHAR(5), @MIDDAYTIME, 114),120)
                                             WHEN BookedFromTime > CONVERT(DATETIME,CONVERT(VARCHAR(10), BookedFromTime, 120) + ' ' + CONVERT(VARCHAR(5), @MIDDAYTIME, 114),120) AND IsNull(PMAppointments, 0) >= 0 THEN BookedFromTime END) AS MinPMTime
                            FROM (  
                                    SELECT TempEngineer, BookedDate, BookedFromTime, BookedToTime, TotalDays, DATEDIFF(mi,BookedFromTime, BookedToTime) AS JobMins,
                                            CASE  
                                                WHEN convert(datetime,convert(varchar(5),BookedFromTime,108),120) >= convert(datetime,convert(varchar(5),@ENDTIME,108),120) THEN DATEDIFF(mi,convert(datetime,convert(varchar(5),BookedFromTime,108),120), convert(datetime,convert(varchar(5),@ENDTIME,108),120))/@JOBLENGTH
                                                WHEN convert(datetime,convert(varchar(5),BookedToTime,108),120) >= convert(datetime,convert(varchar(5),@MIDDAYTIME,108),120) THEN DATEDIFF(mi,convert(datetime,convert(varchar(5),@MIDDAYTIME,108),120), convert(datetime,convert(varchar(5),BookedToTime,108),120))/@JOBLENGTH                                 
                                            END As PMAppointments                
                                    FROM #TempEngineer  

                                )INSIDEQUERY_A
                                GROUP BY TempEngineer, BookedDate, BookedFromTime, BookedToTime, TotalDays, JobMins
                        )INSIDEQUERY_B              
                        GROUP BY TempEngineer, BookedDate, BookedFromTime, BookedToTime, TotalDays, JobMins, MinPMTime
                )OUTSIDEQUERY       
                WHERE (DATEDIFF(mi,BookedFromTime, BookedToTime) >= @JOBLENGTH) 
                        AND (DATEDIFF(mi,BookedFromTime, BookedToTime) < 600)
                GROUP BY TempEngineer, BookedDate, BookedFromTime, BookedToTime, TotalDays, JobMins, MinPMTime

            UNION

            SELECT [slot_tbl_Schedule].[AppointmentType], [slot_tbl_Schedule].[BookedDate],[slot_tbl_Schedule].[FromTime],[slot_tbl_Schedule].[ToTime],0,[slot_tbl_Schedule].[JobMins]
            FROM [slot_tbl_Schedule]
            INNER JOIN [#TempEngineer] ON [slot_tbl_Schedule].[Engineer] = [#TempEngineer].[TempEngineer]
            WHERE [slot_tbl_Schedule].[BookedDate] BETWEEN @iSTARTDATE AND DATEADD(dd,@TOTALDAYS,@iSTARTDATE)
            ORDER BY BookedFromTime


DECLARE @C1_AppointmentType VARCHAR(50)
DECLARE @C1_BookedDate DateTime
DECLARE @C1_BookedFromTime DateTime
DECLARE @C1_BookedToTime DateTime
DECLARE @C1_TotalDays INT
DECLARE @C1_JobMins INT

DECLARE @WC_AppointmentType VARCHAR(50)
DECLARE @WC_BookedDate DateTime
DECLARE @WC_BookedFromTime DateTime
DECLARE @WC_BookedToTime DateTime
DECLARE @WC_TotalDays INT
DECLARE @WC_JobMins INT

DECLARE @Saved AS BIT

CREATE TABLE 
    #TempEngineerGroupMain 
        (
            AppointmentType VARCHAR(50),
            BookedDate DateTime, 
            BookedFromTime DateTime, 
            BookedToTime DateTime, 
            TotalDays INT,  
            JobMins INT
        )


DECLARE c1 CURSOR READ_ONLY
FOR 
    SELECT *
    FROM [#TempEngineerGroup]
    ORDER BY  [BookedDate] ASC, [AppointmentType] ASC, BookedFromTime ASC, [JobMins] desc

OPEN c1
    FETCH NEXT FROM c1 INTO @C1_AppointmentType, @C1_BookedDate, @C1_BookedFromTime, @C1_BookedToTime, @C1_TotalDays, @C1_JobMins

SET @Saved = 0

WHILE @@FETCH_STATUS = 0
BEGIN
    IF ISNULL(@WC_AppointmentType,'') = ''
    BEGIN
        SET @WC_AppointmentType = @C1_AppointmentType
        SET @WC_BookedDate = @C1_BookedDate
        SET @WC_BookedFromTime = @C1_BookedFromTime
        SET @WC_BookedToTime = @C1_BookedToTime
        SET @WC_TotalDays = @C1_TotalDays
        SET @WC_JobMins = @C1_JobMins
    END
    ELSE -- Start Checks
        BEGIN
            IF @C1_BookedDate != @WC_BookedDate -- Different Date
                BEGIN                   
                    INSERT INTO [#TempEngineerGroupMain] ([AppointmentType],[BookedDate],[BookedFromTime],[BookedToTime],[TotalDays],[JobMins])
                        VALUES ( @WC_AppointmentType, @WC_BookedDate, @WC_BookedFromTime, @WC_BookedToTime, @WC_TotalDays, DATEDIFF(mi,@WC_BookedFromTime,@WC_BookedToTime))
                    SET @WC_AppointmentType = @C1_AppointmentType
                    SET @WC_BookedDate = @C1_BookedDate
                    SET @WC_BookedFromTime = @C1_BookedFromTime
                    SET @WC_BookedToTime = @C1_BookedToTime
                    SET @WC_TotalDays = @C1_TotalDays
                    SET @WC_JobMins = @C1_JobMins
                    SET @Saved = 0
                END
            IF @C1_AppointmentType != @WC_AppointmentType -- Different Appointment so Store Value
                BEGIN   
                    INSERT INTO [#TempEngineerGroupMain] ([AppointmentType],[BookedDate],[BookedFromTime],[BookedToTime],[TotalDays],[JobMins])
                        VALUES ( @WC_AppointmentType, @WC_BookedDate, @WC_BookedFromTime, @WC_BookedToTime, @WC_TotalDays, DATEDIFF(mi,@WC_BookedFromTime,@WC_BookedToTime))
                    SET @WC_AppointmentType = @C1_AppointmentType
                    SET @WC_BookedDate = @C1_BookedDate
                    SET @WC_BookedFromTime = @C1_BookedFromTime
                    SET @WC_BookedToTime = @C1_BookedToTime
                    SET @WC_TotalDays = @C1_TotalDays
                    SET @WC_JobMins = @C1_JobMins
                    SET @Saved = 0
                END
            ELSE IF @C1_BookedDate = @WC_BookedDate AND @C1_AppointmentType = @WC_AppointmentType AND @C1_BookedFromTime <= @WC_BookedFromTime AND @C1_BookedToTime >= @WC_BookedFromTime 
                BEGIN -- Change Start Time
                    SET @WC_BookedFromTime = @C1_BookedFromTime
                    SET @Saved = 0
                END
            ELSE IF @C1_BookedDate = @WC_BookedDate AND @C1_AppointmentType = @WC_AppointmentType AND @C1_BookedFromTime <= @WC_BookedToTime AND @C1_BookedToTime >= @WC_BookedFromTime 
                BEGIN -- Change End Time
                    SET @WC_BookedToTime = @C1_BookedToTime
                    SET @Saved = 0
                END
            ELSE IF @C1_BookedDate = @WC_BookedDate AND @C1_AppointmentType = @WC_AppointmentType AND @C1_BookedFromTime < @WC_BookedFromTime AND @C1_BookedToTime < @WC_BookedFromTime
                BEGIN -- New
                    INSERT INTO [#TempEngineerGroupMain] ([AppointmentType],[BookedDate],[BookedFromTime],[BookedToTime],[TotalDays],[JobMins])
                        VALUES ( @WC_AppointmentType, @WC_BookedDate, @WC_BookedFromTime, @WC_BookedToTime, @WC_TotalDays, DATEDIFF(mi,@WC_BookedFromTime,@WC_BookedToTime))
                    SET @WC_AppointmentType = @C1_AppointmentType
                    SET @WC_BookedDate = @C1_BookedDate
                    SET @WC_BookedFromTime = @C1_BookedFromTime
                    SET @WC_BookedToTime = @C1_BookedToTime
                    SET @WC_TotalDays = @C1_TotalDays
                    SET @WC_JobMins = @C1_JobMins
                    SET @Saved = 1
                END
            ELSE IF @C1_BookedDate = @WC_BookedDate AND @C1_AppointmentType = @WC_AppointmentType AND @C1_BookedFromTime > @WC_BookedToTime 
                BEGIN -- New
                    INSERT INTO [#TempEngineerGroupMain] ([AppointmentType],[BookedDate],[BookedFromTime],[BookedToTime],[TotalDays],[JobMins])
                        VALUES ( @WC_AppointmentType, @WC_BookedDate, @WC_BookedFromTime, @WC_BookedToTime, @WC_TotalDays, DATEDIFF(mi,@WC_BookedFromTime,@WC_BookedToTime))
                    SET @WC_AppointmentType = @C1_AppointmentType
                    SET @WC_BookedDate = @C1_BookedDate
                    SET @WC_BookedFromTime = @C1_BookedFromTime
                    SET @WC_BookedToTime = @C1_BookedToTime
                    SET @WC_TotalDays = @C1_TotalDays
                    SET @WC_JobMins = @C1_JobMins
                    SET @Saved = 1
                END
        END
    FETCH NEXT FROM c1 INTO @C1_AppointmentType, @C1_BookedDate, @C1_BookedFromTime, @C1_BookedToTime, @C1_TotalDays, @C1_JobMins
END 

IF @Saved = 0 
    INSERT INTO [#TempEngineerGroupMain] ([AppointmentType],[BookedDate],[BookedFromTime],[BookedToTime],[TotalDays],[JobMins])
    VALUES ( @WC_AppointmentType, @WC_BookedDate, @WC_BookedFromTime, @WC_BookedToTime, @WC_TotalDays, DATEDIFF(mi,@WC_BookedFromTime,@WC_BookedToTime))

CLOSE c1
DEALLOCATE c1

SELECT *
FROM [#TempEngineerGroupMain]

thr 问题是，虽然它应该从 linq 中的临时表中返回行，但它返回一个 int 是否有任何理由说明为什么会发生这种情况？

Answer 1

一个常见的原因是存储过程具有众所周知的弱元数据，特别是对于具有分支等的复杂代码。外部代码很难真正理解正在选择/返回的内容。

一个常见的技巧是用简单到令人 NumPy 的东西(即简单地返回所需模式的任何样本数据)替换 sproc 以进行检查，然后交换回真正的代码。或者，如果可能，请考虑交换到 UDF - 因为 UDF 具有更强的架构元数据。

当然，您也可以基于类似的工作正常的东西手动编辑 DBML。

顺便说一句 - 您可能有许多现有代码的问题，包括(但不限于)DML/DDL 转换(强制重新编译)、对同一个表的多次更新(强制选择性重新编译) - 更不用说游标的使用了(这可能不是必要的)。表变量(@table 而不是 #table)也可能有用。我不打算重新编写它；只需记下您可能想要查看的一些内容。