Next entries ##

##

SELECT * FROM table 
  ORDER BY id DESC 
  LIMIT $lastId, $ammountOfDataToDisplay

##

##

if ($lastId > 0) {
  my $newId = $lastId - $ammountOfDataToDisplay;
  print qq~Last~;
}
if ($outputCount == $ammountOfDataToDisplay) {
  my $newId = $lastId + $ammountOfDataToDisplay;
  print qq~Next~;
}