Highlight in Oracle Text

Question

Hi!!
I followed the steps described in the reference guide of Oracle Text to highlights the result of a search in a text, but I can't show the text whit these words highlighting.
I copy the code I ran:
create table hightab(query_id number,
offset number,
length number);
Table created
begin
ctx_doc.highlight('sentencias', '4', 'redactor', 'hightab', 0, TRUE);
end;
PL/SQL procedure successfully completed
select * from hightab
QUERY_ID OFFSET LENGTH
0 89 8
Thanks a lot!
Regards,
Fabiana.

Answer 1

It works for me, so in must be due to some differences in settings.
scott@ORA92> CREATE TABLE sentencias_ws
  2    (id  NUMBER PRIMARY KEY,
  3       doc XMLTYPE)
  4  /
Table created.
scott@ORA92> INSERT INTO sentencias_ws VALUES
  2  (189, XMLTYPE ('<EST>
  3  <JUR>
  4  <SENT>
  5  <NUMERO>2/04</NUMERO>
  6  </SENT>
  7  </JUR>
  8  <NUMERO>1/2005</NUMERO>
  9  </EST>
10  '))
11  /
1 row created.
scott@ORA92> begin
  2    ctx_ddl.create_section_group('XMLGroup', 'XML_SECTION_GROUP');
  3    ctx_ddl.ADD_ZONE_SECTION( 'XMLGroup', 'EST', 'EST' );
  4    ctx_ddl.ADD_ZONE_SECTION('XMLGroup', 'JUR', 'JUR' );
  5    ctx_ddl.ADD_ZONE_SECTION( 'XMLGroup', 'SENT', 'SENT' );
  6    ctx_ddl.ADD_ZONE_SECTION( 'XMLGroup', 'NUMERO', 'NUMERO' );
  7  end;
  8  /
PL/SQL procedure successfully completed.
scott@ORA92> begin
  2    ctx_ddl.create_preference('MYLEX','BASIC_LEXER');
  3    ctx_ddl.set_attribute('MYLEX','SKIPJOINS','.');
  4    ctx_ddl.set_attribute('MYLEX','NUMJOIN',',');
  5  end;
  6  /
PL/SQL procedure successfully completed.
scott@ORA92> CREATE INDEX busquedaXML ON sentencias_ws(doc)
  2  INDEXTYPE IS ctxsys.context
  3  PARAMETERS
  4    ('datastore ctxsys.default_datastore
  5        filter ctxsys.null_filter
  6        section group XMLGroup
  7        lexer mylex')
  8  /
Index created.
scott@ORA92> Select * from sentencias_ws
  2  where contains(doc, '(((2/04 within NUMERO) WITHIN SENT) WITHIN JUR) WITHIN EST')>0
  3  /
        ID
DOC
       189
<EST>
  <JUR>
    <SENT>
      <NUMERO>2/04</NUMERO>
    </SENT>
  </JUR>
  <NUMERO>1/2005</NUMERO>
</EST>
scott@ORA92>