php - LIMIT 与 JOIN 使用 Zend Framework

Question

我有 2 个表 parent，children，关系为 1:M。我需要一个分页。我将 SELECT 与 JOIN 一起使用。对于一位家长，我有一些 child 。如果我尝试使 LIMIT 10 此查询总共获得 10 行。但我只需要从表 parent 中获取所有关系的 10 行。我该怎么做？
抱歉我的英语不好。提前谢谢你。

Mysql查询:

SELECT `o`.`id` AS `order_id`, `od`.`id` AS `order_destination_id` FROM `order` AS `o`
 LEFT JOIN `order_destination` AS `od` ON o.id = od.order_id LIMIT 5

Zend 框架:

$select = $this->select()
    ->setIntegrityCheck(false)
    ->from(array('o' => 'order'), array('order_id' => 'id'))
    ->joinLeft(array('od' => 'order_destination'), 'o.id = od.order_id', array('order_destination_id' => 'id'))
    ->limit(5);

Answer 1

我不知道 Zend 框架。这是一个普通的 SQL 解决方案:

SELECT `o`.`id` AS `order_id`, `od`.`id` AS `order_destination_id` FROM `order` AS `o`
LEFT JOIN `order_destination` AS `od` ON o.id = od.order_id 
where (select count(*) from order o2 where o2.id > o.id) < 10