我想将在不同行上输出的一对多关系合并到一行。
(select rate_value1 
      FROM xgenca_enquiry_event 
       INNER JOIN  xgenca_enquiry_iso_code_translation 
             ON 
       xgenca_enquiry_event_rate.rate_code_id 
           = xgenca_enquiry_iso_code_translation.id  
       where xgenca_enquiry_event_rate.event_id = xgenca_enquiry_event.id 
              and ISO_code = 'PDIV') as PDIVrate, 
(select rate_value1 
       FROM xgenca_enquiry_event 
        INNER JOIN xgenca_enquiry_iso_code_translation 
              ON 
         xgenca_enquiry_event_rate.rate_code_id 
           = xgenca_enquiry_iso_code_translation.id  
        where xgenca_enquiry_event_rate.event_id = xgenca_enquiry_event.id 
              and ISO_code = 'TAXR') as TAXrate
PDIVrate    TAXrate
NULL        10.0000000
0.0059120   NULL
我想要一行的结果。任何帮助将不胜感激。谢谢。