工作日:排除周日和法定节假日,根据自己业务需求进行调整,仅供参考
--考虑周日和节假日
--HolidayList 节假日表,保存各个节假日的开始 StartDate 和结束日期 EndDate
DECLARE @startDate DATE = '' -- 起始日期
DECLARE @endDate DATE = '' -- 结束日期
DECLARE @totalDays INT = DATEDIFF(DAY, @startDate, @endDate) +1 -- 计算总天数
DECLARE @weekendDays INT = 0 -- 初始化周末天数
DECLARE @holidayDays INT = 0 -- 初始化节假日天数
DECLARE @currentDate DATE = @startDate -- 初始化当前日期为起始日期
WHILE @currentDate <= @endDate
BEGIN
-- 检查当前日期是否在法定节假日范围内
DECLARE @holidayRange INT = (SELECT CASE WHEN StartDate <= @currentDate AND EndDate >= @currentDate THEN 1 ELSE 0 END FROM HolidayList WHERE StartDate <= @currentDate AND EndDate >= @currentDate)
IF @holidayRange = 1
BEGIN
SET @holidayDays += 1
END
-- 检查当前日期是否为周日 OR DATEPART(WEEKDAY, @currentDate) = 7 周六
IF DATEPART(WEEKDAY, @currentDate) = 1 --周日
BEGIN
SET @weekendDays += 1
END
SET @currentDate = DATEADD(DAY, 1, @currentDate) -- 递增当前日期
END
-- 计算实际工作天数 = 总天数 - 周末天数 - 节假日天数
DECLARE @workingDays INT = @totalDays - @weekendDays - @holidayDays
SELECT @totalDays AS TotalDays, @weekendDays AS WeekendDays, @holidayDays AS HolidayDays, @workingDays AS WorkingDays