sql function and parameter (Date_format)

[Akron99]

Sorry my english :)

$result = $DB->rawQuery('SELECT DATE_FORMAT(start_date, "%Y") start_date FROM city_events WHERE start_date < ?', array('2013-04-01'));

it is not work!

$result = $DB->rawQuery('SELECT DATE_FORMAT(start_date, ?) start_date From city_events WHERE start_date < ?', array('%Y', '2013-04-01'));

$result is empty

if the where condition is "start_date > ?" (reverse relation)
it is work

$result = $DB->rawQuery('SELECT start_date From city_events WHERE start_date < ?', array('2013-04-01'));

it is work, but date is not formated