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我正在尝试执行一个相当复杂的 SQL 查询,它已经超出了我的范围,我想我已经接近了,我的前额现在很痛,我举起双手寻求帮助。

<?php       
                                $db =& JFactory::getDBO();
                                $userid = "SELECT * FROM #__users  WHERE id='".$row->userid."' ";           
                                $db->setQuery
                                ("
                                select #__nbill_contact.user_id as userid, concat(#__nbill_entity.company_name, ' - ', #__nbill_contact.first_name, ' ',        
                                #__nbill_contact.last_name) as contact_entity from #__nbill_entity 
                                INNER JOIN  #__nbill_entity_contact on  #__nbill_entity.id = #__nbill_entity_contact.entity_id 
                                INNER JOIN  #__nbill_contact on #__nbill_entity_contact.contact_id = #__nbill_contact.id and #__nbill_contact.user_id > 0"
                                );
                                $user_type_detail = $db->loadAssoc();
                                ech $user_tpe_detail["contact_entity"]
                            ;?>

提前致谢!

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