#  Accepts a database handle, a table name, and a hashref
#  of field names and values. Returns on success, otherwise
#  dies.

sub addData
{
  my ( $dbh, $table, $args ) = @_;

  #  Get a comma separated list of the field names ..
  my $fields = join(',', keys %$args);

  #  Get the values into an array ..
  my @values = values %$args;

  #  Get a comma separated list of '?', one for each value ..
  my $placeholderList = join(',',('?') x @values);

  #  Build the entire command ..
  my $cmd = "INSERT INTO $table ($fields) VALUES ($placeholderList)";

  #  Prepare the command and execute it with the array of values.
  my $sth = $dbh->prepare($cmd);
  $sth->execute(@values) or die $sth->error;

  return 0;     # Success!
}