Re: Don't want blank data

David Olbersen wrote: >Greetings, >  Is there a way to have postgresql always return a value for each row >  requested?
Tobe more clear, if I were using a Perl SQL hybrid I would wri     >te >  something like > >  SELECT computer_ip or
'unset'FROM computers; > >  So that if computers.computer_ip is NULL or '' I will get 'unset' back fro     >m >  the
database.I hope this makes sense and somebody can point me in a good >  direction
 

SELECT COALESCE(computer_ip,'unset') AS computer_ip FROM computers;

COALESCE() returns the leftmost non-null value from its parameters.

-- 
Oliver Elphick                                Oliver.Elphick@lfix.co.uk
Isle of Wight                              http://www.lfix.co.uk/oliver
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