两个日期之间的工作日数 - StartDate 问题 [重复]

Question

我需要计算 StartDate 和 EndDate 之间的工作日数。我使用以下工作正常，但我的 StartDate 需要是表中的“TradeDate”，而不是为 StartDate 设置的特定日期。如何正确更改“SET @StartDate”以选择表中每条记录的“TradeDate”？

Declare @StartDate DATEtime
Declare @EndDate DATEtime
SET
@StartDate = ? ? ?
SET
@EndDate = GETDATE()
SELECT
(DATEDIFF(dd, @StartDate, @EndDate) -1) -(DATEDIFF(wk, @StartDate, @EndDate) * 2) -(
CASE WHEN DATENAME(dw, @StartDate) = 'Sunday' THEN 1 ELSE 0 END
) -(
CASE WHEN DATENAME(dw, @EndDate) = 'Saturday' THEN 1 ELSE 0 END
) as DaysOutstanding,
DealTicketReference,
PortfolioCode
from
tbl
where
StatusId = '1'
and Type = '0'

Answer 1

您可以使用SELECT 声明：

SELECT (DATEDIFF(dd, TradeDate, @EndDate) -1) -
       (DATEDIFF(wk, TradeDate, @EndDate) * 2) -
       (CASE WHEN DATENAME(dw, TradeDate) = 'Sunday' 
             THEN 1 ELSE 0 
        END) -
       (CASE WHEN DATENAME(dw, @EndDate) = 'Saturday' 
             THEN 1 ELSE 0 
        END) as DaysOutstanding,
        DealTicketReference, PortfolioCode
from tbl
where StatusId = '1' and Type = '0';

如果StatusId & Type 始终具有数值，则不需要制作文字字符串。只要通过StatusId = 1 & Type = 0