ALTER PROCEDURE [dbo].[Sp_WeekWelding]
(
   @StartWeldingDate DATETIME,
   @EndWeldingDate DATETIME,
   @WelderCode NVARCHAR(20) = NULL
)
AS
BEGIN
    SET NOCOUNT ON;

    DECLARE @Sql NVARCHAR(MAX)
    DECLARE @ColList NVARCHAR(MAX) = ''
    DECLARE @ColNameList NVARCHAR(MAX) = ''
    DECLARE @FinalDateCols NVARCHAR(MAX) = ''

    ;WITH DateCalendar AS (
        SELECT CAST(@StartWeldingDate AS DATE) AS WeldDay
        UNION ALL
        SELECT DATEADD(DAY, 1, WeldDay)
        FROM DateCalendar
        WHERE WeldDay < CAST(@EndWeldingDate AS DATE)
    )
    SELECT 
        @ColList += ISNULL(',[' + CONVERT(VARCHAR, WeldDay, 23) + ']',''),
        @ColNameList += ISNULL(',ISNULL([' + CONVERT(VARCHAR, WeldDay, 23) + '],0) AS [' + CONVERT(VARCHAR, WeldDay, 23) + ']',''),
        @FinalDateCols += ISNULL(',t.[' + CONVERT(VARCHAR, WeldDay, 23) + ']','')
    FROM DateCalendar
    ORDER BY WeldDay

    SET @ColList = STUFF(@ColList,1,1,'')
    SET @ColNameList = STUFF(@ColNameList,1,1,'')
    SET @FinalDateCols = STUFF(@FinalDateCols,1,1,'')

    -- 动态行转列SQL
    SET @Sql = N'
    WITH DailyDataAll AS (
        SELECT
            welder.WED_Code AS WelderCode,
            CONVERT(DATE, daily.JOT_WeldDate) AS WeldDay,
            SUM(ISNULL(jot.JOT_DoneDin, 0)) AS DailyWeldingSize
        FROM HJGL_PW_JointInfo jot
        LEFT JOIN dbo.HJGL_PW_IsoInfo pipe ON pipe.ISO_ID = jot.ISO_ID
        LEFT JOIN HJGL_BO_WeldReportMain daily ON jot.DReportID = daily.DReportID
        LEFT JOIN dbo.HJGL_BS_Welder welder ON welder.WED_ID = jot.JOT_FloorWelder
        WHERE 
            daily.JOT_WeldDate >= @StartWeldingDate 
            AND daily.JOT_WeldDate < DATEADD(DAY, 1, @EndWeldingDate)
            AND jot.JOT_Size <> jot.JOT_DoneDin
            AND (@WelderCode IS NULL OR welder.WED_Code = @WelderCode)
        GROUP BY welder.WED_Code, CONVERT(DATE, daily.JOT_WeldDate)
    ),
    FilterWelder AS (
        SELECT DISTINCT WelderCode 
        FROM DailyDataAll 
        WHERE DailyWeldingSize > 40
    ),
    DailyData AS (
        SELECT a.* 
        FROM DailyDataAll a
        INNER JOIN FilterWelder f ON a.WelderCode = f.WelderCode
    )
    SELECT 
        pvt.WelderCode,
        ' + @ColNameList + '
    FROM DailyData
    PIVOT (
        SUM(DailyWeldingSize)
        FOR WeldDay IN (' + @ColList + ')
    ) pvt
    ORDER BY pvt.WelderCode;
    '

    -- 临时表：只保留焊工号
    CREATE TABLE #TempResult
    (
        WelderCode NVARCHAR(50)
    );

    DECLARE @AddColSql NVARCHAR(MAX) = ''
    ;WITH DateCalendar AS (
        SELECT CAST(@StartWeldingDate AS DATE) AS WeldDay
        UNION ALL
        SELECT DATEADD(DAY, 1, WeldDay)
        FROM DateCalendar
        WHERE WeldDay < CAST(@EndWeldingDate AS DATE)
    )
    SELECT @AddColSql += 'ALTER TABLE #TempResult ADD [' + CONVERT(VARCHAR, WeldDay, 23) + '] FLOAT DEFAULT 0;'
    FROM DateCalendar
    ORDER BY WeldDay
    EXEC(@AddColSql);

    -- 执行动态PIVOT写入临时表
    INSERT INTO #TempResult EXEC sp_executesql @Sql,
        N'@StartWeldingDate DATETIME,@EndWeldingDate DATETIME,@WelderCode NVARCHAR(20)',
        @StartWeldingDate,@EndWeldingDate,@WelderCode;

    -- 查询焊工项目名称
    CREATE TABLE #WelderProject
    (
        WelderCode NVARCHAR(50),
        ProjectNames NVARCHAR(MAX)
    );

    INSERT INTO #WelderProject(WelderCode,ProjectNames)
    SELECT DISTINCT
        welder.WED_Code,
        ISNULL(STUFF((
            SELECT DISTINCT ',' + proj.ProjectCode
            FROM HJGL_PW_JointInfo jot2
            LEFT JOIN HJGL_PW_IsoInfo pipe2 ON pipe2.ISO_ID = jot2.ISO_ID
            LEFT JOIN dbo.Base_Project proj ON proj.ProjectId = pipe2.ProjectId
            LEFT JOIN HJGL_BO_WeldReportMain daily2 ON jot2.DReportID = daily2.DReportID
            LEFT JOIN dbo.HJGL_BS_Welder welder2 ON welder2.WED_ID = jot2.JOT_FloorWelder
            WHERE welder2.WED_Code = welder.WED_Code
              AND daily2.JOT_WeldDate >= @StartWeldingDate 
              AND daily2.JOT_WeldDate < DATEADD(DAY, 1, @EndWeldingDate)
              AND jot2.JOT_Size <> jot2.JOT_DoneDin
            FOR XML PATH(''), TYPE
        ).value('.','NVARCHAR(MAX)'),1,1,''),'') AS ProjectNames
    FROM HJGL_PW_JointInfo jot
    LEFT JOIN dbo.HJGL_PW_IsoInfo pipe ON pipe.ISO_ID = jot.ISO_ID
    LEFT JOIN HJGL_BO_WeldReportMain daily ON jot.DReportID = daily.DReportID
    LEFT JOIN dbo.HJGL_BS_Welder welder ON welder.WED_ID = jot.JOT_FloorWelder
    WHERE 
        daily.JOT_WeldDate >= @StartWeldingDate 
        AND daily.JOT_WeldDate < DATEADD(DAY, 1, @EndWeldingDate)
        AND jot.JOT_Size <> jot.JOT_DoneDin
        AND (@WelderCode IS NULL OR welder.WED_Code = @WelderCode);

    -- 动态拼接最终输出SQL
    DECLARE @FinalSql NVARCHAR(MAX) = N'
    SELECT 
        t.WelderCode,
        wp.ProjectNames,
        ' + @FinalDateCols + '
    FROM #TempResult t
    INNER JOIN #WelderProject wp ON t.WelderCode = wp.WelderCode
    ORDER BY t.WelderCode;
    '
    EXEC(@FinalSql);

    -- 清理临时表
    DROP TABLE IF EXISTS #TempResult;
    DROP TABLE IF EXISTS #WelderProject;
END


GO