如何订购通过XMLAGG函数进行聚合的字段？

Question

我有见下表：

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 

我使用XMLAGG来聚合super_narrative在对应于PART_NUMBER 1行。

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

但我想根据seq_nbr聚集的super_narrative。

怎么做？

Answer 1

你不提DBMS，但野生的猜测是：

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