Insert row into table 2D retaining the previous values

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  < cd >
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  < country > USA < / country >
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  < CD >
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  Binary b
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  < title > hide your heart < /title >
  Burlesque Empire < title > < /title >
  
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  Binary B,
  Table (xmlsequence(extract(b.object_value,'/catalog/cd'))) d
  WHERE existsNode (b.object_value,'/catalog/cd [artist = "Bob Dylan"]') = 1;
  
  VALUE (D)
  --------------------------------------------------------------------------------
  
  < cd >
  < title > hide your heart < /title >
  < artist > Bonnie Tyler < / artist >
  < Country > UK < / country >
  < company > CBS Records < / company >
  < price > 9.90 < / price >
  < year > 1988 < / year >
  < CD >
  
  < cd >
  Empire Burlesque < title > < /title >
  < artist > Bob Dylan < / artist >
  < country > USA < / country >
  < company > Columbia < / company >
  < price > 10.90 < / price >
  < year > 1985 < / year >
  < CD >
  
  2 selected lines.
  
  
  It's better because it is now divided into 2 different lines so I should be able to make a selection - where, and then select the title from the artist.
  
  However, this is where I have questions, I tried to literally hours but I can't understand how to use the results of the query above in my next. So I tried to use a suquery in this way:
  
  Select extract (sub1, ' cd/title')
  Of
  (
  SELECT value (d)
  Binary B,
  Table (xmlsequence(extract(b.object_value,'/catalog/cd'))) d
  ) sub1
  WHERE existsNode (sub1,'/ cd [artist = "Bob Dylan"]') = 1;
  
  However, sql * plus displays an error:
  
  ORA-00904: "SUB1": invalid identifier.
  
  I've tried dozens of variations to try to use subqueries but I simly can't do things.
  
  I heard you can do also do this using variables or pl/sql, but I don't know where to start.
  
  Any help would be greatly appreciated I tried everything at my disposal.

  This should help you get started!

  select banner as "Oracle version" from v$version where banner like 'Oracle%';
  
  create table otn5test(
    id number,
    data xmltype
  );
  
  insert into otn5test values (1, xmltype('
  
  
  Bonnie Tyler
  UK
  CBS Records
  9.90
  1988
  
  
  
  Bob Dylan
  USA
  Columbia
  10.90
  1985
  
  
  '));
  
  select otn5test.id, x.*
  from otn5test,
       xmltable('/catalog/cd[artist/text()="Bob Dylan"]' passing otn5test.data
       columns title varchar2(20) path 'title') x;
  
  select otn5test.id,
         xmlcast(xmlquery('/catalog/cd[artist/text()="Bob Dylan"]/title'
                 passing otn5test.data returning content)
         as varchar2(20)) from otn5test;
  
  drop table otn5test;
  

  sqlplus> @otn-5.sql
  
  Oracle version
  ------------------------------------------------------------------------------
  Oracle Database 11g Release 11.2.0.1.0 - 64bit Production
  
  Table created.
  
  1 row created.
  
       ID TITLE
  ---------- --------------------
        1 Empire Burlesque
  
       ID XMLCAST(XMLQUERY('/C
  ---------- --------------------
        1 Empire Burlesque
  
  Table dropped.
  

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  >
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