sub selectMsgFromDb {
    my ($self, %params) = @_;
    $self->checkRequiredParams(%params);
    my $sth = $dbh->prepare( $cfg->{retrieve_from_sql}->{msg} );
    $sth->execute;

    my $messages = $sth->fetchall_hashref({});
    # warn Dumper $messages; # in case you don't believe me ;)

    return $messages;
}