SQL Server 2012:DateDiff不包括where子句中的周末

我有一个动态SQL查询，它统计特定办公室中签名超过创建日期1个工作日的文档

以下是查询：

set @strsql = '(select @cnt = COUNT(*) from '+@TableNameDocs+' D
                inner join dbo.Signatures S on D.id = S.TableId
                where S.cityid = '+str(@Cityid)+' and S.OfficeId = '+str(@Officeid)+' and S.isValid = 1 and D.cityid = '+str(@Cityid)+' and D.OfficeId = '+str(@Officeid)+' and DATEDIFF(day,D.CreatedDate,COALESCE(S.SignedDate, GETDATE())) > 1)'

但我想更改它，这样它只计算工作日期，并检查

办公室是否在周末为周六和周日的国家或某个国家
周末是星期五和星期六。我可以从
Offices
表中获取办公室所在国家/地区。办公室可以在黎巴嫩（周六-周日周末）或沙特阿拉伯（周五-周六周末）
也许你可以试试这样的方式：
首先从
办公室
表中找到
@Officeid
的
国家
：

-- GET OFFICE'S COUNTRY
    SELECT @country = [Country] from dbo.Offices
    where officeid = @Officeid

然后根据国家：

IF @country = 'SAUDI ARABIA' --Weekend in Saudi Arabia is Fri-Sat
    BEGIN
        set @strsql = '(select @cnt=COUNT(*) from '+@TableNameDocs+' D
                        inner join dbo.Signatures S on D.id = S.TableId
                        where S.cityid = '+str(@Cityid)+' and S.OfficeId = '+str(@Officeid)+' and S.isValid = 1 and D.cityid = '+str(@Cityid)+' and D.OfficeId = '+str(@Officeid)+' and 
                        ((DATEDIFF(dd, D.CreatedDate, COALESCE(S.SignedDate, GETDATE())))
                        -(DATEDIFF(wk, D.CreatedDate, COALESCE(S.SignedDate, GETDATE())) * 2)
                        -(CASE WHEN DATENAME(dw, D.CreatedDate) = ''Saturday'' THEN 1 ELSE 0 END)
                        -(CASE WHEN DATENAME(dw, COALESCE(S.SignedDate, GETDATE())) = ''Friday'' THEN 1 ELSE 0 END))>1)'

    END
    else
    BEGIN
        set @strsql = '(select @cnt=COUNT(*) from '+@TableNameDocs+' D
                        inner join dbo.Signatures S on D.id = S.TableId
                        where S.cityid = '+str(@Cityid)+' and S.OfficeId = '+str(@Officeid)+' and S.isValid = 1 and D.cityid = '+str(@Cityid)+' and D.OfficeId = '+str(@Officeid)+' and 
                            ((DATEDIFF(dd, D.CreatedDate, COALESCE(S.SignedDate, GETDATE())))
                            -(DATEDIFF(wk, D.CreatedDate, COALESCE(S.SignedDate, GETDATE())) * 2)
                            -(CASE WHEN DATENAME(dw, D.CreatedDate) = ''Sunday'' THEN 1 ELSE 0 END)
                            -(CASE WHEN DATENAME(dw, COALESCE(S.SignedDate, GETDATE())) = ''Saturday'' THEN 1 ELSE 0 END))>1)'
    END

学分
这可能会有帮助@Sureshraprajapati谢谢，但我在where子句中使用所需的if语句时遇到问题