I have written a function that will return an integer based on the length
of a given field defined as text.
It seems that if the given field has not yet been populated (ie: it is
null), my function returns nothing.  I have tried expressly sending back a
value as such to no avail:

int isempty(text*)
{
  return (100);
}

If the text* is null, it does not return 100 though it does seem to
process the function and does not core dump.  (ie: returns blank entries
with the proper number of tuples at the end).  Any ideas?  Thanks again.

--
Colin Dick
On Call Internet Services
cdick@mail.ocis.net



Tue, 22 Sep 1998 10:37:13 -0700 (PDT)
Colin Dick <cdick@mail.ocis.net>
Question re: null
Hello Colin,

martedï¿½, 22 settembre 98, you wrote:

CD> I have written a function that will return an integer based on the length
CD> of a given field defined as text.
CD> It seems that if the given field has not yet been populated (ie: it is
CD> null), my function returns nothing.  I have tried expressly sending back a
CD> value as such to no avail:

CD> int isempty(text*)
CD> {
CD>   return (100);
CD> }

CD> If the text* is null, it does not return 100 though it does seem to
CD> process the function and does not core dump.  (ie: returns blank entries
CD> with the proper number of tuples at the end).  Any ideas?  Thanks again.

I'm very interesting on this subject too.
Does anybody knows how to solve this question ?
I can't belive that we are the only people having problems
with NULLs. ;)

 Jose'



Wed, 23 Sep 1998 17:25:52 +0200
Sferacarta Software <sferac@bo.nettuno.it>
Re: [SQL] Question re: null