Yes, that's exactly what merlyn is trying to get across. A database is pretty useless if you are only storing a single value. Much easier to simply manage a flat file and be able to read it into an array. A database becomes useful when you need to associate one piece of data with another.

For your example, you are not associating anything with the name. All you have is a name. No age, email adress, phone number, or anything related to the user. If you did have anything, you'd then be using something like this:

# I've never really used a dbm.
# They allow complicated structures, right?
$dbm{$name}{'age'}   = 29;
$dbm{$name}{'email'} = 'nobody@example.com';
[download]

For a single value, I'd probably use something like this. It could use a little more work :)

use Fcntl ':flock';

sub add_names {
 my @add = @_;

 open my $fh, '+<', 'names.dat';
 flock $fh, LOCK_EX;
 chomp( my @names = <$fh> );
 seek $fh, 0, 2;

 for my $name (@add) {
  warn "$name is already in file" and next
   if grep { /^$name$/i } @names;
  print $fh "$name\n";
 }

 close $fh;
}

sub get_names {
 open my $fh, '<', 'names.dat';
 chomp( my @names = <$fh> );
 close $fh;

 return @names;
}

sub del_names {
 my @del = @_;

 open my $fh, '+<', 'names.dat';
 flock $fh, LOCK_EX;
 chomp( my @names = <$fh> );
 truncate $fh, 0;
 seek $fh, 0, 0;

 for my $name (@names) {
  print $fh "$name\n" unless grep { /^$name$/i } @del;
 }
 close $fh;
}
[download]

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