oracle 10g中listagg的替代品

Posted 2023-05-09

【中文标题】oracle 10g中listagg的替代品

【英文标题】：alternative to listagg in oracle 10g

【发布时间】：2019-01-24 13:42:29

【问题描述】：

我有这个查询我需要从 oracle 11g 转换到 10g，任何人都可以帮助我完成这个过程，因为在 oracle 10g 中它不支持 listagg

(SELECT REQ.ID_REQUISICAO, 1 AVISO,
                      LISTAGG(CF.desc_quest || ' Sim. ' || REQ.C_NOTA_QUEST, chr(10))
                       WITHIN GROUP (ORDER BY 1) ALERTAS
                      FROM SII_CF_QUEST CF INNER JOIN SII_REQ_QUEST REQ
                      ON CF.id_quest = REQ.id_quest
                      WHERE CF.id_aviso IS NOT NULL
                      AND REQ.id_sn_quest = 1
                      GROUP BY REQ.ID_REQUISICAO) ;

任何帮助将不胜感激，谢谢

【问题讨论】：

看看这些替代方案：oracle-base.com/articles/misc/string-aggregation-techniques

【参考方案1】：

SELECT REQ.ID_REQUISICAO, 1 AVISO, To_Char(wm_concat(CF.desc_quest || ' Sim. ' ||REQ.C_NOTA_QUEST)) AS ALERTAS
FROM SII_CF_QUEST CF INNER JOIN SII_REQ_QUEST REQ
                      ON CF.id_quest = REQ.id_quest
                      WHERE CF.id_aviso IS NOT NULL
                      AND REQ.id_sn_quest = 1
                      GROUP BY REQ.ID_REQUISICAO ;

解决了我的问题

【讨论】：

你也可以考虑***.com/questions/53558016/oracle-sql-listagg/…作为优雅的sys_connect_by_path函数的替代品。