Question

如果日期是t-SQL中if语句中的工作日，是否有更简洁的方法可以解决？

我想要比下面更简洁的东西

if ((DATENAME(WEEKDAY, @date) = 'Monday' or DATENAME(WEEKDAY, @date) = 'Tuesday' or DATENAME(WEEKDAY, @date) = 'Wednesday' or DATENAME(WEEKDAY, @date) = 'Thursday' or DATENAME(WEEKDAY, @date) = 'Friday'))
    --do something

Answer 1

如果您使用的是英国/美国标准DATEFIRST（默认）设置

使用WEEKDAY功能

CASE WHEN WEEKDAY(@date) BETWEEN 2 AND 6 THEN @dosomething ELSE 'WEEKEND' END

Answer 2

你可以检查相反的情况：如果是周末那天。

select case when datename(weekday, getdate()) not in ('Saturday', 'Sunday') then 1 end weedayBoolean

Answer 3

有点像以前的答案，但既不依赖语言也不依赖datefirst设置：

select
    CASE WHEN DATEPART(weekday,@date) in (
        DATEPART(weekday,'20150822'), --"Known good" Saturday
        DATEPART(weekday,'20150503') --"Known good" Sunday
    ) THEN 'Weekend'
    ELSE 'Weekday'
    END

如果日期是sql server

3 个答案: