$db->query('SELECT c.* ,
(SELECT COUNT(*) FROM city c2 WHERE c2.parent = c.id) as child_count
FROM city c WHERE c.parent='.$parent);请问如何转为thinkphp的子查询等？ 最佳答案
$db->query('SELECT c.* ,
(SELECT COUNT(*) FROM city c2 WHERE c2.parent = c.id) as child_count
FROM city c WHERE c.parent='.$parent);请问如何转为thinkphp的子查询等？