相关疑难解决方法(0)

我有下表:

Part_number   seq_nbr    Super_narrative
1                1        When replacing
1                2        part  with following parts
1                3        note:follwing are now available
1                4        with the organization 

我正在使用XMLAGG来聚合对应于part_number的1行中的super_narrative.

SELECT serv_part_nbr, rtrim (xmlagg (xmlelement (e, Super_narrative || ', ')).extract ('//text()'), ',') PHRASE_TEXT 
FROM BL_MACS_SUPERSEDENCE_NOTE
GROUP BY part_number

但我想的聚集super_narrative根据seq_nbr.

怎么做？？