$db->query( 
'SELECT * from thistable WHERE position <= ?', 
$position )->flat()


##</code><code>##


$db->query( 
'SELECT * from thistable WHERE position - 1 <= ?',
$position )->flat();


##</code><code>##


$position = 500;

$db->query( 
'SELECT position from thistable WHERE position <= ?', 
$position )->flat()


##</code><code>##


$position = 500;

$db->query( 
'SELECT position from thistable WHERE (position-1+1) <= ?', 
$position )->flat()


##</code><code>##


$db->query( 
"SELECT position from thistable WHERE (position- ?) <= 500", 1 )->flat()