Use of uninitialized value in join or string at C:/Perl_activate/20_October_2005_L.pl line 438, <FLAT_FILE> line 1191.


##</code><code>##


    my $sth_C = $dbh->prepare($Return_results) or die "Couldn't prepare query: ".$dbh->errstr;
    
    $sth_C->execute() or die "Couldn't execute query: ".$sth_C->errstr;
    
        while (my @row = $sth_C->fetchrow_array) {
             
      print OUTPUT_FILE join("\t", @row);  ###<< The error message applies to this line of code.
      print OUTPUT_FILE "\n";
      
      undef @row;