Sql 不包括星期五及；在SSRS中使用DATEDIFF函数时

下面是我的

SQL

查询，用于计算两天之间的天数

SELECT      count(*) as NoofCalls, outside.ReferenceNo, outside.WorkflowType, outside.Department, inside.CompletedDate, outside.CommentResponse, outside.CommentText, outside.CommentUserDisplayName, outside.StepName, outside.Originator, outside.Subject, outside.StartTime, CAST(DATEDIFF(hh, outside.StartTime, inside.CompletedDate) / 24.0 AS decimal(10,5)) AS CompDays
FROM
(
    SELECT      ReferenceNo, MAX(CommentDate) as CompletedDate
    FROM        FNCUSTOM.dbo.WorkflowHistory
    WHERE       WorkflowType IN (@WorkflowType) AND Department IN (@Department) AND Originator IN (@Originator) AND ReferenceNo IN (@Reference_No)
                AND (StartTime between @StartDate AND @EndDate)
    GROUP BY    ReferenceNo
) inside
INNER JOIN  FNCUSTOM.dbo.WorkflowHistory outside ON outside.ReferenceNo = inside.ReferenceNo AND outside.CommentDate=inside.CompletedDAte
GROUP BY    outside.ReferenceNo, outside.WorkflowType, outside.Department, inside.CompletedDate, outside.CommentResponse, outside.CommentText, outside.CommentUserDisplayName, outside.StepName, outside.Originator, outside.Subject, outside.StartTime

我需要在计算CompDays时排除星期五和星期六

提前感谢您的帮助。

我自己修好了

SELECT      count(*) as NoofCalls, outside.ReferenceNo, outside.WorkflowType, outside.Department, inside.CompletedDate, outside.CommentResponse, outside.CommentText, 
    outside.CommentUserDisplayName, outside.StepName, outside.Originator, outside.Subject, outside.StartTime,
                            CAST(DATEDIFF(hh, outside.StartTime, inside.CompletedDate) / 24.0 AS decimal(10,5)) 
                             -(DATEDIFF(wk, outside.StartTime, inside.CompletedDate) * 2)
                             -(CASE WHEN DATENAME(dw, outside.StartTime) = 'Friday' THEN 1 ELSE 0 END)
                             -(CASE WHEN DATENAME(dw, inside.CompletedDate) = 'Saturday' THEN 1 ELSE 0 END)  AS CompDays
    FROM
(
            SELECT      ReferenceNo, MAX(CommentDate) as CompletedDate
            FROM        FNCUSTOM.dbo.WorkflowHistory
            WHERE       WorkflowType IN (@WorkflowType) AND Department IN (@Department) AND Originator IN (@Originator) AND ReferenceNo IN (@Reference_No)
                    AND (StartTime between @StartDate AND @EndDate)
            GROUP BY    ReferenceNo
) inside
INNER JOIN  FNCUSTOM.dbo.WorkflowHistory outside ON outside.ReferenceNo = inside.ReferenceNo AND outside.CommentDate=inside.CompletedDAte
GROUP BY               outside.ReferenceNo, outside.WorkflowType, outside.Department, inside.CompletedDate, outside.CommentResponse, outside.CommentText, 
    outside.CommentUserDisplayName, outside.StepName, outside.Originator, outside.Subject, outside.StartTime
ORDER BY               outside.ReferenceNo, outside.WorkflowType, outside.Department, outside.StartTime, inside.CompletedDate, outside.CommentResponse, outside.CommentText, 
    outside.CommentUserDisplayName, outside.StepName, outside.Originator, outside.Subject

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使用SSRS 2005。开始日期可能从周四（比如2013-04-25 08:58:47.000）开始，结束日期（比如2013-04-28 20:58:47.000）结束，那么COMPDAYS应该是1.5天。不包括完整的星期五和星期六两个日期之间的天数-这总是相对较小（比如说，少于一周），还是可能是周/月/年？@WillA它可能少于一周；而且可能超过一周。。。。几个月内可能很少有人去。。但不是yearsHi，有人能帮我吗没有这个PLZI，有人能帮我这个plz吗