Question

我正在尝试使用xml文件创建一个用列分隔的oracle表。我使用sql命令创建表：

create table  mytable of XMLType;

insert into mytable2 values(XMLType(bfilename('XMLDIR','XMLFileName.xml'),nls_charset_id('AL32UTF8')));

该文件以xml结构插入到表中，但我需要在列中查看或仅在令牌ct：iid之后选择字段到标记中。例如，在第一个标签中，我需要选择值“OrphanedBSCs”。

    <?xml version="1.0" encoding="WINDOWS-1252"?>
<ArrayOfRootEntityType xmlns:umts="http://www.aircominternational.com/Schemas/UMTS/2010/07" xmlns:tra70="http://www.aircominternational.com/Schemas/Connect/2010/08" xmlns:ct="http://www.aircominternational.com/Schemas/CommonTypes/2009/05" xmlns:co="http://www.aircominternational.com/Schemas/Common/2009/07" xmlns:gsm80="http://www.aircominternational.com/Schemas/GSM/2011/04" xmlns:ecs="http://www.aircominternational.com/Schemas/EWS/ECSCoverageTypes/2011/08" xmlns:gsm70="http://www.aircominternational.com/Schemas/GSM/2010/08" xmlns:config="http://www.aircominternational.com/Schemas/Configuration/2010/08" xmlns:cdma="http://www.aircominternational.com/Schemas/CDMA/2010/12" xmlns:co70="http://www.aircominternational.com/Schemas/Common/2010/08" xmlns:umts80="http://www.aircominternational.com/Schemas/UMTS/2011/04" xmlns:eqp70="http://www.aircominternational.com/Schemas/Equipment/2010/08" xmlns:co80="http://www.aircominternational.com/Schemas/Common/2011/04" xmlns:util="http://www.aircominternational.com/contract/Util/2009/10" xmlns:tra80="http://www.aircominternational.com/Schemas/Connect/2011/04" xmlns:umts70="http://www.aircominternational.com/Schemas/UMTS/2010/08" xmlns:eqp80="http://www.aircominternational.com/Schemas/Equipment/2011/04" xmlns:tra="http://www.aircominternational.com/Schemas/Connect/2009/09" xmlns:lte="http://www.aircominternational.com/Schemas/LTE/2010/08" xmlns:eds="http://www.aircominternational.com/contract/EDS/2009/05" xmlns:umts2="http://www.aircominternational.com/Schemas/UMTS/2009/05" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:eqp="http://www.aircominternational.com/Schemas/Equipment/2009/09" xmlns:gsm="http://www.aircominternational.com/Schemas/GSM/2009/09" xmlns:lte80="http://www.aircominternational.com/Schemas/LTE/2011/04">
  <RootEntityType xsi:type="gsm:MSCType" ct:iid="OrphanedBSCs" ct:bvid="IVLP_201303" ct:eid="223127">
    <Security>
      <CreateDate>2013-03-21T10:01:18</CreateDate>
      <ModifyDate>2013-03-21T10:01:19</ModifyDate>
      <CreateUser>EDS_SOA_Client</CreateUser>
      <ModifyUser>EDS_SOA_Client</ModifyUser>
      <UserGroup>All</UserGroup>
      <Permissions>
        <Owner>write</Owner>
        <Group>write</Group>
        <All>read</All>
      </Permissions>
    </Security>
    <CustomFields>
      <Field Group="SOURCE" Value="NETWORK"/>
      <Field Group="LastUpdated" Value="3/21/2013 10:01:18 AM"/>
    </CustomFields>
    <Location ct:iid="OrphanedBSCs_msc_loc" ct:eid="119692"/>
    <gsm:BSCs>
      <gsm:BSC ct:iid="OrphanedSites" ct:bvid="IVLP_201303" ct:eid="223128">
        <Security>
          <CreateDate>2013-03-21T10:01:19</CreateDate>
          <ModifyDate>2013-03-21T10:01:19</ModifyDate>
          <CreateUser>EDS_SOA_Client</CreateUser>
          <ModifyUser>EDS_SOA_Client</ModifyUser>
          <UserGroup>All</UserGroup>
          <Permissions>
            <Owner>write</Owner>
            <Group>write</Group>
            <All>read</All>
          </Permissions>
        </Security>
        <CustomFields>
          <Field Group="SOURCE" Value="NETWORK"/>
          <Field Group="LastUpdated" Value="3/21/2013 10:01:19 AM"/>
        </CustomFields>
        <Location ct:iid="OrphanedSites_bsc_loc" ct:eid="119693"/>
        <gsm:Parent ct:iid="OrphanedBSCs" ct:eid="223127"/>
        <gsm:BSCId>0</gsm:BSCId>
        <gsm:AllowedOperations>ReadWrite</gsm:AllowedOperations>
      </gsm:BSC>
    </gsm:BSCs>
    <gsm:AllowedOperations>ReadWrite</gsm:AllowedOperations>
  </RootEntityType>
  <RootEntityType xsi:type="gsm:MSCType" ct:iid="HUAWEI_2G_MSC" ct:bvid="IVLP_201303" ct:eid="223131">
    <Security>
      <CreateDate>2013-03-21T10:01:21</CreateDate>
      <ModifyDate>2013-03-21T10:01:21</ModifyDate>
      <CreateUser>EDS_SOA_Client</CreateUser>
      <ModifyUser>EDS_SOA_Client</ModifyUser>
      <UserGroup>All</UserGroup>
      <Permissions>
        <Owner>write</Owner>
        <Group>write</Group>
        <All>read</All>
      </Permissions>
    </Security>
    <CustomFields>
      <Field Group="SOURCE" Value="NETWORK"/>
      <Field Group="LastUpdated" Value="3/21/2013 10:01:21 AM"/>
    </CustomFields>
    <Location ct:iid="HUAWEI_2G_MSC_msc_loc" ct:eid="119696"/>
    <gsm:BSCs>
      <gsm:BSC ct:iid="BSCMG35" ct:bvid="IVLP_201303" ct:eid="223252">
        <Security>
          <CreateDate>2013-03-21T10:01:30</CreateDate>
          <ModifyDate>2013-03-21T10:01:30</ModifyDate>
          <CreateUser>EDS_SOA_Client</CreateUser>
          <ModifyUser>EDS_SOA_Client</ModifyUser>
          <UserGroup>All</UserGroup>
          <Permissions>
            <Owner>write</Owner>
            <Group>write</Group>
            <All>read</All>
          </Permissions>
        </Security>
        <CustomFields>
          <Field Group="SOURCE" Value="NETWORK"/>
          <Field Group="LastUpdated" Value="3/21/2013 10:01:22 AM"/>
        </CustomFields>
        <Location ct:iid="BSCMG35_bsc_loc" ct:eid="119817"/>
        <gsm:Parent ct:iid="HUAWEI_2G_MSC" ct:eid="223131"/>
        <gsm:BSCId>0</gsm:BSCId>
        <gsm:AllowedOperations>ReadWrite</gsm:AllowedOperations>
      </gsm:BSC>
      <gsm:BSC ct:iid="BSCMG34" ct:bvid="IVLP_201303" ct:eid="223270">
        <Security>
          <CreateDate>2013-03-21T10:01:30</CreateDate>
          <ModifyDate>2013-03-21T10:01:30</ModifyDate>
          <CreateUser>EDS_SOA_Client</CreateUser>
          <ModifyUser>EDS_SOA_Client</ModifyUser>
          <UserGroup>All</UserGroup>
          <Permissions>
            <Owner>write</Owner>
            <Group>write</Group>
            <All>read</All>
          </Permissions>
        </Security>
        <CustomFields>
          <Field Group="SOURCE" Value="NETWORK"/>
          <Field Group="LastUpdated" Value="3/21/2013 10:01:22 AM"/>
        </CustomFields>
        <Location ct:iid="BSCMG34_bsc_loc" ct:eid="119835"/>
        <gsm:Parent ct:iid="HUAWEI_2G_MSC" ct:eid="223131"/>
        <gsm:BSCId>0</gsm:BSCId>
        <gsm:AllowedOperations>ReadWrite</gsm:AllowedOperations>
      </gsm:BSC>
    </gsm:BSCs>
    <gsm:AllowedOperations>ReadWrite</gsm:AllowedOperations>
  </RootEntityType>
</ArrayOfRootEntityType>

Answer 1

使用类似的东西：

select *
from   table-with-xml-column t
,      xmltable
       ( 'PATH/TO/WHAT/YOU/NEED' 
         passing t.xml_column_name
         columns column1 number       path 'path1'
         columns column2 char(1 byte) path 'path2'
         columns column3 varchar2(30) path 'path3'
       ) t2

提示！请注意，处理XML列可能会非常缓慢，Oracle似乎经常解析xmltype的内容。不要在XML和内容的实际大小的情况下测试性能，不要在XML和关系数据或高频率执行的语句中引入复杂的连接。

Answer 2

感谢您的帮助。我解决了设置xml文件中使用的命名空间的问题。这是在xml中选择任何数据的新查询：

选择* 来自table-with-xml-column t ，xmltable （（XMLNAMESPACES（'url_indicated_in_xmlfile_about_ct'as“ct”）， 'PATH / TO /什么/你/ NEED' 传递t.xml_column_name 列column1编号路径'path1' columns column2 char（1字节）path'path2' columns column3 varchar2（30）path'path3' ）t2

基于XML文件创建Oracle表

2 个答案: