You are storing values of the fetched record into the anonymous hash using existing hash reference first and then stores it into an anonymous array. So because you declare $attrHash outside of the while block, each time you assign to $attrHash you acctually override the previous assigned values. The simple fix would be to declare $attrHash localy within the while block to make sure it is a different hash, like in the following:

...

    #push the data onto our results
    while ( my $resultRowRef = $sth->fetchrow_hashref() )
     {  
        my $attrHash;
        $attrHash->{OBJECT} = $resultRowRef->{'ATTRNAME'};
        $attrHash->{OBJECTATTRIB} = $resultRowRef->{'ATTRNAME2'};
        push (@$result, $attrHash);
     }

...
[download]

or, simply create it in place:

...

    #push the data onto our results
    while ( my $resultRowRef = $sth->fetchrow_hashref() )
     {  
        push (@$result, \{
                           OBJECT       => $resultRowRef->{ATTRNAME},
                           OBJECTATTRIB => $resultRowRef->{ATTRNAME2}
                         });
     }

...
[download]

BR