foreach my $line (@lines) {
        $sth->execute($line, $line) or die "Can't execute SQL statement: $DBI::errstr\n";
        my @all_rows;
        while ( my $ref = $sth->fetchrow_arrayref()) {
                push(@all_rows, $ref);
        }
        foreach my $row_ref (@all_rows) {
                print "@{$row_ref}\n";
        }
}

##</code><code>##

my @sorted = map {$_->[0]} sort {$a->[1] <=> $b->[1] || 
             $a->[2] <=> $b->[2] || $a->[3] <=> $b->[3] ||
             $a->[4] <=> $b->[4]} map {
             [$_, split(/\./, (split /\s+/, $_)[1])]} @lines;
print "$_\n" for @{$row_ref};