mysql - 如何提高 zend paginator 分页的性能

Question

我已经制作了一个基于 AJAX 的 Zend_Paginator，但是我不想从查询中获取所有记录。例如;我每页有 10 个项目，所以我希望我的查询只获取 10 行。

这是代码:-

$request = $this->getRequest();
$phone_service_id  =  $request->getParam("id");
$registry = Zend_Registry::getInstance();  
$DB = $registry['DB'];
$sql ="SELECT caller_name,call_number,call_start_time,call_duration,call_direction
       FROM CALL_LOG
       WHERE phone_service_id = $phone_service_id";
$result = $DB->fetchAll($sql);
$page=$this->_getParam('page',1);
$paginator = Zend_Paginator::factory($result);
$paginator->setItemCountPerPage(10);
$paginator->setCurrentPageNumber($page);
$this->view->paginator=$paginator;
$page = $paginator->getCurrentPageNumber();
$perPage = $paginator->getItemCountPerPage();
$total = $paginator->getTotalItemCount();
$A = ($page - 1) * $perPage + 1;
$B = min($A + $perPage - 1, $total);
$C = $total;
$this->view->assign('url', $request->getBaseURL());
$this->view->assign('total',$total );
$this->view->assign('page',$page );
$this->view->assign('A',$A );
$this->view->assign('B',$B );
$this->view->assign('C',$C );

我如何限制我的查询，以便它首先提取第一页的 10 行，如果是第二页，则它只提取 11 到 20 行，依此类推？

Answer 1

你可以这样做

$select = $DB->select()
             ->from('CALL_LOG', array('caller_name','call_number','call_start_time','call_duration','call_direction'))
             ->where('phone_service_id = ?', $phone_service_id);
$adapter = new Zend_Paginator_Adapter_DbSelect($select);
$paginator = new Zend_Paginator($adapter);

然后是您的其余代码。