How to find dayname from the function

Question

Hi
I am looking for , to get dayname  from the following function. Please help to correct this function Also the folowing error is coming
Select statements included within a function cannot return data to a client.
/****** Object:  UserDefinedFunction [dbo].[ufEmployeeHrs]    Script Date: 13/08/2014 16:21:37 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER FUNCTION [dbo].[ufEmployeeHrs](@Recordid int,@DateWorked date)
RETURNS decimal(4,2) 
AS 
BEGIN
    DECLARE @ret decimal(4,2) ;
DECLARE @DateName Varchar;
Strig dayname = SELECT datename(dw,convert(datetime, @DateWorked, 111));
If dayname='Monday' then
ret = select monhr from workhrs
End if
If dayname='Tuesday' then
ret = select tuehrs from workhrs
End if
    RETURN @ret;
END;
polachan

Answer 1

@Visakh16:
You might need to change your query slightly to return a single value:
SELECT TOP 1 @ret = CASE DATENAME(dw,convert(datetime, @DateWorked, 111))
WHEN 'Monday' then monhr
WHEN 'Tuesday' then tuehrs
END
from workhrs
WHERE RecordID = @Recordid
ORDER BY unknown_column
It need's to be noted that this query will only work if the language setting of the query is English.
Otherwise it'll fail.
An alternative would be:
SELECT TOP 1 @ret = CASE DATEDIFF(dd,0,@DateWorked)%7
WHEN 0 then monhr -- Monday
WHEN 1 then tuehrs -- Tuesday
END
from workhrs
WHERE RecordID = @Recordid
ORDER BY unknown_column