SQL Server中子节点中的空白xml命名空间

时间:2016-02-26 09:58:28

标签: sql sql-server xml tsql xml-namespaces

您好我需要在sql中提供以下帮助:

我需要以这种格式创建一个xml文件

<Document xmlns="urn:iso:std:iso:20022:tech:xsd:001.002.001.04">
 <FIToFIPmtStsRpt>
  <GrpHdr>
    <MsgId></MsgId>
  </GrpHdr>
  <OrgnlGrpInfAndSts>
    <OrgnlMsgId />
  </OrgnlGrpInfAndSts>
 </FIToFIPmtStsRpt>
</document>

目前我有一个包含主要信息的变量,我建立了信息之间的信息(认为grphdr可以多次插入到主xml中,使用不同的信息)

declare @xml xml='<Document
xmlns="urn:iso:std:iso:20022:tech:xsd:001.002.001.04">
<FIToFIPmtStsRpt>
</FIToFIPmtStsRpt>
</Document>
'

declare @xmlgrp xml='<GrpHdr>
  <MsgId></MsgId>
</GrpHdr>'
--here i do some code to fill msgid

然后我将grphdr添加回主xml

SET @xml.modify
('declare namespace a= "urn:iso:std:iso:20022:tech:xsd:001.002.001.04";
insert sql:variable("@xmlgrp") 
into (a:Document/a:FIToFIPmtStsRpt)[1]')

select @xml

我需要找出顶级文件格式,但现在发生的是以下内容

<Document xmlns="urn:iso:std:iso:20022:tech:xsd:001.002.001.04">
 <FIToFIPmtStsRpt>
   <GrpHdr xmlns="">-- i need this xmlns tag out
     <MsgId />
   </GrpHdr>
 </FIToFIPmtStsRpt>
 </Document>

不知怎的,我需要xml中的空xmlns标签。我无法转换为varchar(max)以删除,因为我们的数据库已将变量限制为8000个字符 我的xml可以增长到8000以上。 1个文件中可以有多个grphdr或OrgnlGrpIn​​fAndSts

table: lim_Live_Inbound
lim_msg_id                    |  lim_request_transaction_id  | client_name
------------------------------------------------------
021/00210006/20160225/000002  | 00012016-02-25000000023      | Mr Piet
021/00210006/20160225/000002  | 00012016-02-25000000022      | Mrs Name

必须像这样生成

<Document xmlns="urn:iso:std:iso:20022:tech:xsd:001.002.001.04">
 <FIToFIPmtStsRpt>
  <GrpHdr>
    <MsgId>021/00210006/20160225/000002</MsgId>
  </GrpHdr>
  <OrgnlGrpInfAndSts>
    <OrgnlMsgId>00012016-02-25000000023</OrgnlMsgId>
    <name>Mr Piet</name>
  </OrgnlGrpInfAndSts>
  <OrgnlGrpInfAndSts>
    <OrgnlMsgId>00012016-02-25000000022</OrgnlMsgId>
    <name>Mrs Name</name>
  </OrgnlGrpInfAndSts>
 </FIToFIPmtStsRpt>
</document> 

这就是我尝试插入xml方式的原因。如果有人能以更好的方式帮助我,那将非常感激。

1 个答案:

答案 0 :(得分:4)

编辑2:我终于找到了避免重复命名空间的方法。首先,您创建没有命名空间的嵌套XML,然后加入它:

更新(2017年12月)

这种解决方法实际上仍然没有用处。命名空间xmlns=""被视为* 内的所有内容都不在命名空间内 ...您可以将结果转换为NVARCHAR(MAX)并使用REPLACE来摆脱xmlns=""。然后,您可以将字符串重新转换为XML。对微软的羞辱,10(!!)岁的问题(见下面的链接)仍未解决。请去那里投票!

DECLARE @lim_Live_Inbound TABLE(lim_msg_id VARCHAR(100),lim_request_transaction_id VARCHAR(100),client_name VARCHAR(100));
INSERT INTO @lim_Live_Inbound VALUES
 ('021/00210006/20160225/000002','00012016-02-25000000023','Mr Piet')
,('021/00210006/20160225/000002','00012016-02-25000000022','Mrs Name');

DECLARE @nestedXMLs TABLE(MsgId VARCHAR(100),nestedXML XML);

WITH GrpMsg AS
(
    SELECT DISTINCT lim_msg_id AS MsgId
    FROM @lim_Live_Inbound
)
INSERT INTO @nestedXMLs 
SELECT MsgId 
     ,(
        SELECT innerTbl.lim_request_transaction_id AS OrgnlMsgId
              ,innerTbl.client_name AS name
        FROM @lim_Live_Inbound AS innerTbl
        WHERE innerTbl.lim_msg_id=GrpMsg.MsgId
        FOR XML PATH('OrgnlGrpInfAndSts'),TYPE
      ) 
FROM GrpMsg;

WITH XMLNAMESPACES(DEFAULT 'urn:iso:std:iso:20022:tech:xsd:001.002.001.04')
,GrpMsg AS
(
    SELECT DISTINCT lim_msg_id AS MsgId
    FROM @lim_Live_Inbound
)
SELECT GrpMsg.MsgId AS [GrpHdr/MsgId]
      ,n.nestedXML AS [node()]
FROM GrpMsg
INNER JOIN @nestedXMLs AS n ON GrpMsg.MsgId=n.MsgId
FOR XML PATH('FIToFIPmtStsRp'),ROOT('Document')

结果

<Document xmlns="urn:iso:std:iso:20022:tech:xsd:001.002.001.04">
  <FIToFIPmtStsRp>
    <GrpHdr>
      <MsgId>021/00210006/20160225/000002</MsgId>
    </GrpHdr>
    <OrgnlGrpInfAndSts xmlns="">
      <OrgnlMsgId>00012016-02-25000000023</OrgnlMsgId>
      <name>Mr Piet</name>
    </OrgnlGrpInfAndSts>
    <OrgnlGrpInfAndSts xmlns="">
      <OrgnlMsgId>00012016-02-25000000022</OrgnlMsgId>
      <name>Mrs Name</name>
    </OrgnlGrpInfAndSts>
  </FIToFIPmtStsRp>
</Document>

您使用CAST(REPLACE(CAST(TheXMLHere AS NVARCHAR(MAX)),' xmlns=""','') AS XML)来摆脱错误的空命名空间....

编辑:适合您的样本数据的新方法

这是重复命名空间 - 但这在语法上是正确的,但很烦人(在这里阅读:https://connect.microsoft.com/SQLServer/feedback/details/265956/suppress-namespace-attributes-in-nested-select-for-xml-statements

DECLARE @lim_Live_Inbound TABLE(lim_msg_id VARCHAR(100),lim_request_transaction_id VARCHAR(100),client_name VARCHAR(100));
INSERT INTO @lim_Live_Inbound VALUES
 ('021/00210006/20160225/000002','00012016-02-25000000023','Mr Piet')
,('021/00210006/20160225/000002','00012016-02-25000000022','Mrs Name');

WITH XMLNAMESPACES(DEFAULT 'urn:iso:std:iso:20022:tech:xsd:001.002.001.04')
,GrpMsg AS
(
    SELECT DISTINCT lim_msg_id AS MsgId
    FROM @lim_Live_Inbound
)
SELECT MsgId AS [GrpHdr/MsgId]
     ,(
        SELECT innerTbl.lim_request_transaction_id AS OrgnlMsgId
              ,innerTbl.client_name AS name
        FROM @lim_Live_Inbound AS innerTbl
        WHERE innerTbl.lim_msg_id=GrpMsg.MsgId
        FOR XML PATH('OrgnlGrpInfAndSts'),TYPE
      ) 
FROM GrpMsg
FOR XML PATH('FIToFIPmtStsRp'),ROOT('Document')

结果

<Document xmlns="urn:iso:std:iso:20022:tech:xsd:001.002.001.04">
  <FIToFIPmtStsRp>
    <GrpHdr>
      <MsgId>021/00210006/20160225/000002</MsgId>
    </GrpHdr>
    <OrgnlGrpInfAndSts xmlns="urn:iso:std:iso:20022:tech:xsd:001.002.001.04">
      <OrgnlMsgId>00012016-02-25000000023</OrgnlMsgId>
      <name>Mr Piet</name>
    </OrgnlGrpInfAndSts>
    <OrgnlGrpInfAndSts xmlns="urn:iso:std:iso:20022:tech:xsd:001.002.001.04">
      <OrgnlMsgId>00012016-02-25000000022</OrgnlMsgId>
      <name>Mrs Name</name>
    </OrgnlGrpInfAndSts>
  </FIToFIPmtStsRp>
</Document>

这是第一种方法

我不知道您的数据来自哪里,但是 - 绝对硬编码 - 这就是方法:

WITH XMLNAMESPACES(DEFAULT 'urn:iso:std:iso:20022:tech:xsd:001.002.001.04')
SELECT 0 AS [GrpHdr/MsgId]
      ,0 AS [OrgnlGrpInfAndSts/OrgnlMsgId]
FOR XML PATH('FIToFIPmtStsRp'),ROOT('Document')

结果

<Document xmlns="urn:iso:std:iso:20022:tech:xsd:001.002.001.04">
  <FIToFIPmtStsRp>
    <GrpHdr>
      <MsgId>0</MsgId>
    </GrpHdr>
    <OrgnlGrpInfAndSts>
      <OrgnlMsgId>0</OrgnlMsgId>
    </OrgnlGrpInfAndSts>
  </FIToFIPmtStsRp>
</Document>