How to print GETDATE() in SQL Server with milliseconds in time?

Question

I want to print GETDATE() in SQL Server 2008, I need the time with milliseconds (this is for debugging purpose - to find sp\'s execution time )

I find this Difference

Answer 1

Create a function with return format yyyy-mm-hh hh:mi:ss.sss

create function fn_retornaFecha (@i_fecha datetime)
returns varchar(23)
as
begin
declare 
@w_fecha varchar(23),
@w_anio  varchar(4),
@w_mes   varchar(2),
@w_dia   varchar(2),
@w_hh    varchar(2),
@w_nn    varchar(2),
@w_ss    varchar(2),
@w_sss   varchar(3)

select @w_fecha = null

if ltrim(rtrim(@i_fecha)) is not null 
begin
   select
   @w_anio = replicate('0',4-char_length( convert(varchar(4), year(@i_fecha)) )) + convert(varchar(4), year(@i_fecha)),
   @w_mes  = replicate('0',2-char_length( convert(varchar(2),month(@i_fecha)) )) + convert(varchar(2),month(@i_fecha)),
   @w_dia  = replicate('0',2-char_length( convert(varchar(2),  day(@i_fecha)) )) + convert(varchar(2),  day(@i_fecha))  ,
   @w_hh   = replicate('0',2-char_length( convert(varchar(2),datepart( hh, @i_fecha ) ) )) + convert(varchar(2),datepart( hh, @i_fecha ) ),
   @w_nn   = replicate('0',2-char_length( convert(varchar(2),datepart( mi, @i_fecha ) ) )) + convert(varchar(2),datepart( mi, @i_fecha ) ),
   @w_ss   = replicate('0',2-char_length( convert(varchar(2),datepart( ss, @i_fecha ) ) )) + convert(varchar(2),datepart( ss, @i_fecha ) ),
   @w_sss  = convert(varchar(3),datepart( ms, @i_fecha ) ) + replicate('0',3-DATALENGTH( convert(varchar(3),datepart( ms, @i_fecha ) )  ))


   select @w_fecha = @w_anio + '-' + @w_mes + '-' + @w_dia + ' ' + @w_hh + ':' + @w_nn + ':' + @w_ss + '.' + @w_sss
end

return @w_fecha

end
go

Example

select fn_retornaFecha(getdate())

and the result is: 2016-12-21 10:12:50.123