[英]Converting MSSQL 'FOR XML PATH' To Oracle
我有一个声明来填写我的MSSQL数据库的表。 它将一些值加在一起,用分号分隔。
INSERT INTO XXAArcDocSWSB (ArcDocINr, SWorte)
SELECT A.ArcDocINr, B.SWorte FROM XXAArcDoc A
LEFT JOIN (
SELECT DISTINCT T2.ArcDocINr,
SUBSTRING(
(
SELECT ';' + T1.SWort AS [text()]
FROM (SELECT D.ArcDocINr, SW.SWort FROM XXAArcDoc D, XXAArcSW SW WHERE D.ArcDocINr = SW.ArcDocINr) T1
WHERE T1.ArcDocINr = T2.ArcDocINr
For XML PATH ('')
), 2, 255) [SWorte]
FROM (SELECT D.ArcDocINr, SW.SWort FROM XXAArcDoc D, XXAArcSW SW WHERE D.ArcDocINr = SW.ArcDocINr) T2
) B ON A.ArcDocINr = B.ArcDocINr
我没有足够的知识将其转换为Oracle。 它应该给我与MSSQL相同的输出。 有人能帮我吗?
编辑:
以下是一些示例数据:
XXAArcDoc:
ArcDocINr | ...
----------|----------
1 |
2 |
3 |
. |
. |
. |
XXAArcSW:
ArcSWINr | ArcDocINr | SWort
---------|-----------|---------
6 | 1 | Müller
7 | 1 | 100
8 | 2 | 111111
9 | 2 | 13579
10 | 2 | 002
11 | 3 | TM-AH
这是我想要的输出:
ArcDocINr | SWorte
----------|---------
1 | Müller;100
2 | 111111;13579;002
3 | TM-AH
使用LISTAGG
:
SELECT ArcDocINr,
LISTAGG(
SWort,
';'
) WITHIN GROUP ( ORDER BY ArcSWINr ) AS SWorte
FROM XXAArcSW
GROUP BY ArcDocINr;
更新 :
如果使用XXAArcDoc
表中的值插入XXAArcSW
表,则类似于:
INSERT INTO XXAArcDoc ( ArcDocINr, SWorte )
SELECT ArcDocINr,
LISTAGG( SWort, ';' ) WITHIN GROUP ( ORDER BY ArcSWINr )
FROM XXAArcSW
GROUP BY ArcDocINr
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