Hi all,

in some older code i found something like this:

do {
     my @row;
     while (@row = $sth->fetchrow_array()) {
        # do stuff here
     }
  } while ( defined( $sth->{odbc_more_results}) );
[download]

This one throws an "out of memory" exception. I don"t know who wrote it ;-)

According to the manual of DBD::ODBC the code should be:

do {
     my @row;
     while (@row = $sth->fetchrow_array()) {
        # do stuff here
     }
  } while ( $sth->{odbc_more_results} );
[download]

This one works as expected. No need to worry - i use this code.

But i wonder why the first example fails.

Update: defined for ever?

#!/usr/bin/env perl                                                   
+                        

use feature qw (say);
use strict;
use warnings;

my $foo;

( defined $foo ) ? say qq(D'oh!) : say qq(No!);

$foo = 0;

( defined $foo ) ? say qq(D'oh!) : say qq(No!);
[download]

Thank you very much for any hint and best regards, Karl

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