mysql colonne inconnue

Question

J'utilise cette requête

SELECT COUNT(DISTINCT to_number) AS errors FROM sent_txts 
WHERE msg_link_id = 0 AND 
msg_sent_datetime BETWEEN '2010-08-09 07:00:00' AND '2010-09-07 11:59:59' 
HAVING to_number IN(SELECT mobile FROM action_6_members WHERE mobile = to_number) 

Cependant, je reçois

Unknown column 'tada_prod.sent_txts.to_number' dans 'où la clause'

Si je commenter le fait que la requête fonctionne bien.

Voici la table sent_txts

CREATE TABLE `sent_txts` (
    `id` int(64) NOT NULL AUTO_INCREMENT, 
    `msg_link_id` int(64) DEFAULT NULL, 
    `msg_class` varchar(256) DEFAULT NULL, 
    `msg_ref` varchar(256) DEFAULT NULL, 
    `to_number` varchar(256) DEFAULT NULL, 
    `msg_body` text, 
    `waiting_for_reply` int(64) DEFAULT NULL, 
    `status` varchar(256) DEFAULT NULL, 
    `tada_error` int(64) DEFAULT NULL, 
    `msg_sent_datetime` datetime DEFAULT NULL, 
    `reply_type` int(11) DEFAULT '0', 
    PRIMARY KEY (`id`) 
) ENGINE=MyISAM AUTO_INCREMENT=256379 DEFAULT CHARSET=utf8 

Alors, évidemment, la colonne est là.

Quel est le problème?

---

Voici expliquer de la requête publié par Jonathan

 
id select_type table type possible_keys key key_len ref rows Extra       
1 SIMPLE  a  ALL          10895         
1 SIMPLE  s  ALL          256050 Using where; Using join buffer 

Voici le spectacle crée pour action_6_members:

CREATE TABLE `action_6_members` (
    `id` int(11) NOT NULL AUTO_INCREMENT, 
    `draw_id` int(11) NOT NULL, 
    `mobile` varchar(255) NOT NULL, 
    `fly_buys` varchar(255) NOT NULL, 
    `signup_date` datetime NOT NULL, 
    `club` int(11) NOT NULL DEFAULT '0' COMMENT '1 = yes, 2 = no', 
    `code` varchar(7) DEFAULT NULL, 
    PRIMARY KEY (`id`) 
) ENGINE=MyISAM AUTO_INCREMENT=10896 DEFAULT CHARSET=latin1 

Answer 1

Normalement, une clause HAVING concerne un agrégat à une valeur ou un autre agrégat. Ce qui est dans la clause HAVING de la question devrait être la principale clause WHERE:

SELECT COUNT(DISTINCT to_number) AS errors 
    FROM sent_txts AS s 
WHERE msg_link_id = 0 
    AND msg_sent_datetime BETWEEN '2010-08-09 07:00:00' 
          AND '2010-09-07 11:59:59' 
    AND to_number IN (SELECT mobile FROM action_6_members AS a 
         WHERE a.mobile = s.to_number) 

Mais vous devriez probablement faire que dans une jointure normale:

SELECT COUNT(DISTINCT s.to_number) AS errors 
    FROM sent_txts AS s 
    JOIN action_6_members AS a ON a.mobile = s.to_number 
WHERE s.msg_link_id = 0 
    AND s.msg_sent_datetime BETWEEN '2010-08-09 07:00:00' 
           AND '2010-09-07 11:59:59';