您已经使用了is来摆脱子对象中嵌入的命名空间声明。在实际查询中，这将不起作用，因为4000个字符太小。还有别的办法解决这个问题吗？@DS.-不，这是XMLSerialize调用的一部分，它只是为了更整齐地格式化以便于显示。带有通配符的XMLQuery可以独

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您已经使用了is来摆脱子对象中嵌入的命名空间声明。在实际查询中，这将不起作用，因为4000个字符太小。还有别的办法解决这个问题吗？@DS.-不，这是XMLSerialize调用的一部分，它只是为了更整齐地格式化以便于显示。带有通配符的XMLQuery可以独立工作。很抱歉，请更正。坚持我前面的问题，有没有办法删除访问和声明元素中的名称空间声明？

xmlns:tsxm="http://schemas.thomson.com/ts/20041221/tsip"

CREATE TABLE XML_DOCUMENT_TMP
(
  DOCUMENT_ID   NUMBER(12)                      NOT NULL,
  XML_DATA      SYS.XMLTYPE                     NOT NULL,
  CREATED_DATE  TIMESTAMP(6)                    NOT NULL
);

insert into XML_DOCUMENT_TMP
(document_id,created_date,xml_data)
values(1,sysdate,'<patent  xmlns="http://schemas.thomson.com/ts/20041221/tsip" 
xmlns:tsip="http://schemas.thomson.com/ts/20041221/tsip" 
xmlns:tsxm="http://schemas.thomson.com/ts/20041221/tsxm"  
tsip:action="replace" tsip:cc="CA" tsip:se="2715340" tsip:ki="C">
<accessions tsip:action="replace">
    <accession tsip:src="wila" tsip:type="key">CA-2715340-C</accession>
    <accession tsip:src="tscm" tsip:type="tscmKey">CA-2715340-C-20150804</accession>
</accessions>
<claimed tsip:action="replace">
    <claimsTsxm tsip:lang="en">
        <tsxm:heading tsxm:align="left">We Claim:</tsxm:heading>
        <claimTsxm tsip:no="1" tsxm:num="1" tsip:type="main">1.  power.</claimTsxm>
    </claimsTsxm>
</claimed>

WITH tmpTable AS (
SELECT * FROM XML_DOCUMENT_TMP cm )
SELECT tt.xml_data ,
XMLQuery('declare default element namespace  "http://schemas.thomson.com/ts/20041221/tsip";
      declare namespace  tsip="http://schemas.thomson.com/ts/20041221/tsip";
      declare namespace  tsxm="http://schemas.thomson.com/ts/20041221/tsxm"; 

      let $patsLus := $m/patent/*

      return          
      <patent>{$m/patent/@*}
      {
        for $i in $m/patent/*
            return    $i
      }
      </patent>' 
            PASSING tt.xml_data as "m"   RETURNING CONTENT) newXml 
 FROM tmpTable tt
 WHERE tt.document_id in (1);

<patent xmlns="http://schemas.thomson.com/ts/20041221/tsip"    xmlns:syspfx_AT="http://schemas.thomson.com/ts/20041221/tsip" syspfx_AT:action="replace" syspfx_AT:cc="CA" syspfx_AT:se="2715340" syspfx_AT:ki="C"><accessions xmlns="http://schemas.thomson.com/ts/20041221/tsip" action="replace">
<accession src="wila" type="key">CA-2715340-C</accession>
<accession src="tscm" type="tscmKey">CA-2715340-C-20150804</accession>
</accessions>
<claimed xmlns="http://schemas.thomson.com/ts/20041221/tsip" action="replace">
<claimsTsxm lang="en">
<syspfx_1:heading xmlns:syspfx_1="http://schemas.thomson.com/ts/20041221/tsxm" syspfx_1:align="left">We Claim:</syspfx_1:heading>
<claimTsxm no="1" xmlns:syspfx_1="http://schemas.thomson.com/ts/20041221/tsxm" syspfx_1:num="1" type="main">1.  power.</claimTsxm>
</claimsTsxm>
</claimed>
</patent>

  <patent>{$m/*:patent/@*}
  {
    for $i in $m/*:patent/*
        return    $i
  }
  </patent>' 

 WITH tmpTable AS (
SELECT * FROM XML_DOCUMENT_TMP cm )
SELECT tt.xml_data ,
XMLSerialize(DOCUMENT
XMLQuery('declare default element namespace  "http://schemas.thomson.com/ts/20041221/tsip";
      declare namespace  tsip="http://schemas.thomson.com/ts/20041221/tsip";
      declare namespace  tsxm="http://schemas.thomson.com/ts/20041221/tsxm";

      let $patsLus := $m/patent/*

      return          
      <patent>{$m/*:patent/@*}
      {
        for $i in $m/*:patent/*
            return    $i
      }
      </patent>' 
            PASSING tt.xml_data as "m"   RETURNING CONTENT)
 AS VARCHAR2(4000) INDENT SIZE = 2) ewXml 
 FROM tmpTable tt
 WHERE tt.document_id in (1);

XML_DATA
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
NEWXML
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
<patent xmlns="http://schemas.thomson.com/ts/20041221/tsip" xmlns:tsip="http://schemas.thomson.com/ts/20041221/tsip" xmlns:tsxm="http://schemas.thomson.com/ts/20041221/tsxm" tsip:action="replace" tsip:cc="CA" tsip:se="2715340" tsi
p:ki="C">
  <accessions tsip:action="replace">
    <accession tsip:src="wila" tsip:type="key">CA-2715340-C</accession>
    <accession tsip:src="tscm" tsip:type="tscmKey">CA-2715340-C-20150804</accession>
  </accessions>
  <claimed tsip:action="replace">
    <claimsTsxm tsip:lang="en">
      <tsxm:heading tsxm:align="left">We Claim:</tsxm:heading>
      <claimTsxm tsip:no="1" tsxm:num="1" tsip:type="main">1.  power.</claimTsxm>
    </claimsTsxm>
  </claimed>
</patent>
<patent xmlns="http://schemas.thomson.com/ts/20041221/tsip" xmlns:tsip="http://schemas.thomson.com/ts/20041221/tsip" tsip:action="replace" tsip:cc="CA" tsip:se="2715340" tsip:ki="C">                                                
  <accessions xmlns="http://schemas.thomson.com/ts/20041221/tsip" xmlns:tsip="http://schemas.thomson.com/ts/20041221/tsip" tsip:action="replace">                                                                                     
    <accession tsip:src="wila" tsip:type="key">CA-2715340-C</accession>                                                                                                                                                               
    <accession tsip:src="tscm" tsip:type="tscmKey">CA-2715340-C-20150804</accession>                                                                                                                                                  
  </accessions>                                                                                                                                                                                                                       
  <claimed xmlns="http://schemas.thomson.com/ts/20041221/tsip" xmlns:tsip="http://schemas.thomson.com/ts/20041221/tsip" tsip:action="replace">                                                                                        
    <claimsTsxm tsip:lang="en">                                                                                                                                                                                                       
      <tsxm:heading xmlns:tsxm="http://schemas.thomson.com/ts/20041221/tsxm" tsxm:align="left">We Claim:</tsxm:heading>                                                                                                               
      <claimTsxm tsip:no="1" xmlns:tsxm="http://schemas.thomson.com/ts/20041221/tsxm" tsxm:num="1" tsip:type="main">1.  power.</claimTsxm>                                                                                            
    </claimsTsxm>                                                                                                                                                                                                                     
  </claimed>                                                                                                                                                                                                                          
</patent>