SQL Server 2012：DateDiff 在 where 子句中不包括周末

Question

我有一个动态 SQL 查询，它计算特定办公室中的文档，这些文档在创建日期后超过 1 个工作日签署。

这里是查询：

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，以便它只计算工作日期，并检查 office 是在周末是星期六和星期日的国家/地区还是在其他国家/地区周末是周五和周六。我可以从 Offices table 获取办公室所在的国家/地区。办公室可以在黎巴嫩（周六至周日周末）或沙特阿拉伯（周五至周六周末）

Answer 1

也许你可以尝试这样的事情：首先从 Offices 表中找到 @Officeid 的 Country：

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

然后取决于国家：

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 Jeff Moden

SQL Server 2012：DateDiff 在 where 子句中不包括周末

SQL Server 2012: DateDiff excluding weekends in where clause

sql

sql-server

sql-server-2012

dynamic-sql

datediff