Question

create function Fun12(@InsCd varchar)
returns varchar(100)
as 
begin
declare @ret varchar(52)
set @ret = (select [InsName] from [Assignment4].[dbo].[1466] 
   where rtrim(ltrim([InsCd]))= @InsCd)
return @ret
end

Executing:

declare @r varchar(50)
exec @r = dbo.Fun12 '436'

select @r

I am getting NULL value.
Could any one please help me finding the error?

Answer 1

You need to specify a size for your parameter @InsCd.

Some thing like this but you might want to use another value than 20 depending on the size of field InsCd.

create function Fun12(@InsCd varchar(20))