Mam baze i chce wyciagnac tylko 1 (jeden) rekord co ma ACTION = 1 oraz ID_TO = X

[SQL] pobierz, plaintext 
CREATE TABLE `drug_db_log_pl` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `id_to` int(11) NOT NULL,
  `by_who` int(11) NOT NULL,
  `date` datetime NOT NULL,
  `action` tinyint(4) NOT NULL,
  `text` text NOT NULL,
  PRIMARY KEY  (`id`)
) ENGINE=MyISAM  DEFAULT CHARSET=latin2 AUTO_INCREMENT=5 ;
 
--
-- Dumping data for table `drug_db_log_pl`
--
 
INSERT INTO `drug_db_log_pl` (`id`, `id_to`, `by_who`, `date`, `action`, `text`) VALUES
(1, 1, 1, '2010-09-14 15:44:41', 1, ''),
(2, 1, 1, '2010-09-14 15:44:45', 1, ''),
(3, 1, 1, '2010-09-14 15:44:50', 1, ''),
(4, 2, 1, '2010-09-14 15:45:24', 1, '');
 
[SQL] pobierz, plaintext 

czyli w tym przypadku chce wyciagnac tylko rekord: 1 i 4.
jak to zrobic za pomoca jednego zapytania?

mam cos takiego:

[PHP] pobierz, plaintext 
$sql = ' WHERE by_who = '.$this->u['id'].' AND action = 1 ';
 
				$qq = q('SELECT id FROM `'.PRFX.'db_log'.LG.'`'.$sql); $cnt = n_r($qq); $this->tpl->assign('cnt',$cnt); loadLib('number2word');
				$q = q('SELECT * FROM `'.PRFX.'db_log'.LG.'`'.$sql.' ORDER BY id DESC LIMIT '.($pg*PER_PG3).','.PER_PG3.''); if(n_r($q) > 0) .... 
[PHP] pobierz, plaintext 

To w końcu 1 czy kilka?

[SQL] pobierz, plaintext 
SELECT * FROM  tabela WHERE action=1 AND id_to=X LIMIT 1;
[SQL] pobierz, plaintext 

chce wyciagnac rekordy, ktore maja po 1 powtorzeniu - mowiac inaczej
na zalaczonym przykladzie maja to byc rekordy z ID: 1 i 4

[PHP] pobierz, plaintext 
$qq = q('SELECT DISTINCT id_to FROM `'.PRFX.'db_log'.LG.'`'.$sql); $cnt = n_r($qq); $this->tpl->assign('cnt',$cnt); loadLib('number2word');
				$q = q('SELECT DISTINCT id_to FROM `'.PRFX.'db_log'.LG.'`'.$sql.' ORDER BY id DESC LIMIT '.($pg*PER_PRINT_PG1).','.PER_PRINT_PG1.''); if(n_r($q) > 0) while($_r = f($q)) {
[PHP] pobierz, plaintext 

[SQL] pobierz, plaintext 
SELECT * FROM drug_db_log_pl GROUP BY id_to, action
[SQL] pobierz, plaintext 

ew. jeżeli źle zrozumiałem to tak:

[SQL] pobierz, plaintext 
SELECT * FROM drug_db_log_pl WHERE action = 1 GROUP BY id_to
[SQL] pobierz, plaintext