如何将xml输出TSQL查询转换为varchar输出
发布时间:2020-12-16 23:13:03 所属栏目:百科 来源:网络整理
导读:我想要生成 SELECT DISTINCT P.DOMAIN_ID,P.SOURCE_SYSTEM_IDFROM EDW.dbo.DOMAIN_VALUE AS PWHERE P.ID = 4 AND CURRENT_FLAG = 'Y'EXCEPT( SELECT F.DOMAIN_ID,F.SOURCE_SYSTEM_ID FROM EDW.dbo.DOMAIN AS F WHERE F.ID = 4 AND F.CURRENT_FLAG = 'Y')FOR
我想要生成
SELECT DISTINCT P.DOMAIN_ID,P.SOURCE_SYSTEM_ID FROM EDW.dbo.DOMAIN_VALUE AS P WHERE P.ID = 4 AND CURRENT_FLAG = 'Y' EXCEPT ( SELECT F.DOMAIN_ID,F.SOURCE_SYSTEM_ID FROM EDW.dbo.DOMAIN AS F WHERE F.ID = 4 AND F.CURRENT_FLAG = 'Y' ) FOR XML PATH('DOMAIN'),ROOT('DOMAIN_VALUE') “结果”选项卡中的XML输出值为 <REFERENCE_DOMAIN_VALUE> <REFERENCE_DOMAIN> <REFERENCE_DOMAIN_ID>10799</REFERENCE_DOMAIN_ID> <REFERENCE_SOURCE_SYSTEM_ID>7452-001</REFERENCE_SOURCE_SYSTEM_ID> </REFERENCE_DOMAIN> </REFERENCE_DOMAIN_VALUE> 现在我需要将此XML转换为varchar(max),但结果必须相同. 解决方法
只需将其子查询为标量值并进行转换即可.这里的技巧是子查询中的FOR XML和顶部的EXCEPT不混合,因此首先查询EXCEPT部分.
SELECT CONVERT(varchar(max),( SELECT * FROM ( SELECT DISTINCT P.DOMAIN_ID,P.SOURCE_SYSTEM_ID FROM EDW.dbo.DOMAIN_VALUE AS P WHERE P.ID = 4 AND CURRENT_FLAG = 'Y' EXCEPT ( SELECT F.DOMAIN_ID,F.SOURCE_SYSTEM_ID FROM EDW.dbo.DOMAIN AS F WHERE F.ID = 4 AND F.CURRENT_FLAG = 'Y' ) ) I FOR XML PATH('DOMAIN'),ROOT('DOMAIN_VALUE') )) (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |
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