Question

如何仅使用T-SQL并且不使用CASE语句来获取工作日名称知道工作日整数值？

例如，如果工作日整数值为2，那么我需要得到星期一＆＃39;作为工作日的名字。

declare @currentDate as DATETIME;
set @currentDate = getdate();
SELECT DATEPART(dw, @currentDate) as WeekDayIntegerValue,
       '' as WeekDayName --i need the t-sql to use for this column

Answer 1

你应该使用DATENAME。 https://msdn.microsoft.com/en-us/library/ms174395.aspx

declare @currentDate as DATETIME;
set @currentDate = getdate();
SELECT DATEPART(dw, @currentDate) as WeekDayIntegerValue,
       DATENAME(weekday, @currentDate) as WeekDayName 
       --i need the t-sql to use for this column

此外，你应该养成不使用日期功能快捷方式的习惯。

Bad Habits to Kick : Using shorthand with date/time operations

从SQL Server 2012中的WeekDay整数获取WeekDay名称

1 个答案: