删除具有特定 CDATA 的 xml 节点

Question

这是我的 XML 的一部分：

 <EO Name="oracle.apps.hcm.goals.core.publicModel.entity.GoalMeasurementEO">    
                    <![CDATA[0001FFFFFFFF]]>    
                    <GoalMeasurementEORow PS="0" Hdl="16" PK="Y" CI="Y" AV="111111111111111111111111111111">    
                       <MeasurementId>  
                          <DATA null="true"/>   
                       </MeasurementId> 
                    </GoalMeasurementEORow> 
                 </EO>  
    <EO Name="oracle.apps.hcm.goals.core.publicModel.entity.GoalMeasurementEO"> 
                    <![CDATA[00010000000EACED00057708000110D943311B2F]]>    
                    <GoalMeasurementEORow PS="0" Hdl="1019" PK="Y" CI="Y" AV="">    
                       <MeasurementId>  
                          <DATA>300000297949999</DATA>  
                       </MeasurementId> 
                       <BusinessGroupId>    
                          <DATA>1</DATA>    
                       </BusinessGroupId>   
                     </EO>

我需要使用 Oracle 跨表删除带有<![CDATA[0001FFFFFFFF]]> 的 EO 节点。此 xml 存储在 XMLTYPE 的 XM_DATA_CACHE 中。 有没有办法基于CDATA删除

最终输出应该是

<EO Name="oracle.apps.hcm.goals.core.publicModel.entity.GoalMeasurementEO"> 
                    <![CDATA[0001FFFFFFFF]]>    
                    <GoalMeasurementEORow PS="0" Hdl="16" PK="Y" CI="Y" AV="111111111111111111111111111111">    
                       <MeasurementId>  
                          <DATA null="true"/>   
                       </MeasurementId> 
                    </GoalMeasurementEORow> 
                 </EO>  ```

Answer 1

首先你的xml被破坏了：第二个标签GoalMeasurementEORow没有关闭，而且因为它只是xml的一部分，它没有根标签。

无论如何，我已经修复了您的 xml，以展示如何从您的 xml 中删除 cdata。

请看下面的例子：

-- sample data:
with t(x) as (
select xmltype(q'{
<ROOT>
<EO Name="oracle.apps.hcm.goals.core.publicModel.entity.GoalMeasurementEO">    
                    <![CDATA[0001FFFFFFFF]]>    
                    <GoalMeasurementEORow PS="0" Hdl="16" PK="Y" CI="Y" AV="111111111111111111111111111111">    
                       <MeasurementId>  
                          <DATA null="true"/>   
                       </MeasurementId> 
                    </GoalMeasurementEORow> 
                 </EO>  
    <EO Name="oracle.apps.hcm.goals.core.publicModel.entity.GoalMeasurementEO"> 
                    <![CDATA[00010000000EACED00057708000110D943311B2F]]>    
                    <GoalMeasurementEORow PS="0" Hdl="1019" PK="Y" CI="Y" AV="">    
                       <MeasurementId>  
                          <DATA>300000297949999</DATA>  
                       </MeasurementId> 
                       <BusinessGroupId>    
                          <DATA>1</DATA>    
                       </BusinessGroupId>
                       </GoalMeasurementEORow>
                     </EO>
</ROOT>
}')
from dual)-- end of sample data
-- main query:
select
  XMLQuery(
        'copy $i := $p1 modify
            (for $j in $i//EO
              let $o := <EO >{$j/@*}{ $j/node()[name() ne ""]}</EO>
                return replace node $j with $o
                )
        return $i' 
        PASSING t.x AS "p1"
        returning content
        ) xdata_new
from t;

结果：

XDATA_NEW
----------------------------------------------------------------------------------
<ROOT>
  <EO Name="oracle.apps.hcm.goals.core.publicModel.entity.GoalMeasurementEO">
    <GoalMeasurementEORow PS="0" Hdl="16" PK="Y" CI="Y" AV="111111111111111111111111111111">
      <MeasurementId>
        <DATA null="true"/>
      </MeasurementId>
    </GoalMeasurementEORow>
  </EO>
  <EO Name="oracle.apps.hcm.goals.core.publicModel.entity.GoalMeasurementEO">
    <GoalMeasurementEORow PS="0" Hdl="1019" PK="Y" CI="Y" AV="">
      <MeasurementId>
        <DATA>300000297949999</DATA>
      </MeasurementId>
      <BusinessGroupId>
        <DATA>1</DATA>
      </BusinessGroupId>
    </GoalMeasurementEORow>
  </EO>
</ROOT>

如您所见，我将所有子节点EO 替换为其内容，CDATA 消失。