On Thu, 25 Jan 2001, David Olbersen wrote:
> Greetings,
> Is there a way to have postgresql always return a value for each row
> requested? To be more clear, if I were using a Perl SQL hybrid I would write
> something like
>
> SELECT computer_ip or 'unset' FROM computers;
>
> So that if computers.computer_ip is NULL or '' I will get 'unset' back from
> the database. I hope this makes sense and somebody can point me in a good
> direction
Perhaps:
select case when computer_ip is null or computer_ip='' then 'unset'::text
else computer_ip end from computers;
(the ::text should probably be whatever type computer_ip is)...
