$resource = Mage::getSingleton('core/resource');  
$tableName_votes = $resource->;getTableName('jselfless/votes');  
$tableName_image = $resource->;getTableName('jselfless/image');  
$collection = Mage::getModel('jselfless/woman')->;getCollection();  
$collection->;getSelect()->;reset(Zend_Db_Select::COLUMNS);  
$collection->;getSelect()->;columns(array('items_count'=>;'count(main_table.id)'));    
$collection->;addFieldToFilter('main_table.year',date('Y'));  
$collection->;addFieldToFilter('image.type','main');  
$collection->;addFieldToFilter('award',array('eq'=>;''));  
$collection->;getSelect()->;join(array('votes' =>; $tableName_votes), 'main_table.id = votes.selfless_woman_id', '');  
$collection->;getSelect()->;join(array('image' =>; $tableName_image), 'main_table.id = image.selfless_woman_id', array('image.*'));  
$collection->;getSelect()->;group('main_table.id');  
$collection->;getSelect()->;Order('items_count  desc');  
$collection->;getSelect()->;Order('votes.created_at  desc');    
$collection->;getSelect()->;Order('main_table.updated_at  desc');   
$collection->;getSelect()->;limit(10,$postData['offset']);

来源: magento sql 用法 – jonas的magento博客 – 博客频道 – CSDN.NET.