Problem in creating xml section group

Question

I have created xml section group with some sections defined in the field.Now my attributes are repeated with different root nodes.so i have put braces for differentiation and created context index.
drop index abc_indexes_idx;
begin
ctx_ddl.remove_section('xyz_xml_group','abLName');
ctx_ddl.remove_section('xyz_xml_group','abFName');
ctx_ddl.remove_section('xyz_xml_group','cdLName');
ctx_ddl.remove_section('xyz_xml_group','cdFName');
ctx_ddl.remove_section('xyz_xml_group','efLName');
ctx_ddl.remove_section('xyz_xml_group','efFName');
ctx_ddl.remove_section('xyz_xml_group','ghLName');
ctx_ddl.remove_section('xyz_xml_group','ghFName');
end;
begin
ctx_ddl.drop_section_group('xyz_xml_group');
end;
begin
ctx_ddl.drop_preference('xyz_wildcard_pref1');
end;
begin
ctx_ddl.drop_preference('xyz_lexer_pref1');
end;
begin
ctx_ddl.drop_preference('STEM_FUZZY_PREF');
end;
begin
ctx_ddl.create_section_group('xyz_xml_group','XML_SECTION_GROUP');
ctx_ddl.add_field_section('xyz_xml_group','abLName','IncidentSubject(PersonGivenName');
ctx_ddl.add_field_section('xyz_xml_group','abFName','IncidentSubject(PersonSurName');
ctx_ddl.add_field_section('xyz_xml_group','cdLName','ActivityVictim(PersonGivenName');
ctx_ddl.add_field_section('xyz_xml_group','cdFName','ActivityVictim(PersonSurName');
ctx_ddl.add_field_section('xyz_xml_group','efLName','ActivityComplainantPerson(PersonGivenName');
ctx_ddl.add_field_section('xyz_xml_group','efFName','ActivityComplainantPerson(PersonSurName');
ctx_ddl.add_field_section('xyz_xml_group','ghLName','ActivityWitness(PersonGivenName');
ctx_ddl.add_field_section('xyz_xml_group','ghFName','ActivityWitness(PersonSurName');
end;
begin
ctx_ddl.create_preference('STEM_FUZZY_PREF','BASIC_WORDLIST');
ctx_ddl.set_attribute('STEM_FUZZY_PREF','SUBSTRING_INDEX','TRUE');
end;
begin
ctx_ddl.set_attribute('STEM_FUZZY_PREF','PREFIX_INDEX','YES');
end;
begin
ctx_ddl.create_preference('njdex_lexer_pref1','BASIC_LEXER');
ctx_ddl.set_attribute('STEM_FUZZY_PREF','WILDCARD_MAXTERMS','15000');
end;
drop index xyz_indexes_idx
create index xyz_indexes_idx on xyz_INDEXES(abc column) indextype is ctxsys.context parameters
('datastore ctxsys.direct_datastore wordlist STEM_FUZZY_PREF FILTER ctxsys.null_filter lexer xyz_lexer_pref1
sync(on commit)SECTION GROUP xyz_xml_group MEMORY 500M ');
My XML document is as follows whichi stored in a column of abc and it is of xmltype datatype
<?xml version="1.0" encoding="utf-8"?>
<ab:IncidentReportGroup xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:j="http://www.it.ojp.gov/jxdm/3.0.3" xmlns:ext="http://xml.abc.com/jxdm/3.0.3/extension" xmlns:ab="http://xml.abc.com/jxdm/3.0.3">
<ab:IncidentReport>
<ext:IncidentSubject>
<j:PersonName>
<j:PersonGivenName>abc</j:PersonGivenName>
<j:PersonMiddleName />
<j:PersonSurName>xyz</j:PersonSurName>
<j:PersonSuffixName />
<j:PersonFullName>abc, xyz </j:PersonFullName>
</j:PersonName>
</ext:IncidentSubject>
<ext:ActivityComplainantPerson>
<j:PersonName>
<j:PersonGivenName>abc</j:PersonGivenName>
<j:PersonMiddleName />
<j:PersonSurName>xyz</j:PersonSurName>
<j:PersonSuffixName />
<j:PersonFullName>abc, xyz </j:PersonFullName>
</j:PersonName>
</ext:ActivityComplainantPerson>
<ext:ActivityWitness>
<j:PersonName>
<j:PersonGivenName>abc</j:PersonGivenName>
<j:PersonMiddleName />
<j:PersonSurName>xyz</j:PersonSurName>
<j:PersonSuffixName />
<j:PersonFullName>abc, xyz </j:PersonFullName>
</j:PersonName>
</ext:ActivityWitness>
<ext:ActivityVictim>
<j:PersonName>
<j:PersonGivenName>abc</j:PersonGivenName>
<j:PersonMiddleName />
<j:PersonSurName>xyz</j:PersonSurName>
<j:PersonSuffixName />
<j:PersonFullName>abc, xyz </j:PersonFullName>
</j:PersonName>
</ext:ActivityVictim>
<ext:ActivityWitness>
</ab:IncidentReport>
</ab:IncidentReportGroup>
now when i am trying to run the query
select * from xyz_indexes where contains(xyzcolumn,'(LORI WITHIN abLName)
& ("BELAND" WITHIN abFName)')>0
It is not returning anything.
Can anyone provide me some help on it.

Answer 1

I changed your data to match what you were searching for, then I noticed that your third parameters for add_field_section were wrong, so I changed that. The query then returns rows, as demonstrated below. However, I suspect that add_field_section is not what you want to use with your XML data since you have tags with the same names within different categories.
SCOTT@orcl_11g> SET DEFINE OFF
SCOTT@orcl_11g> begin
  2    ctx_ddl.drop_section_group('xyz_xml_group');
  3  end;
  4  /
PL/SQL procedure successfully completed.
SCOTT@orcl_11g> begin
  2    ctx_ddl.drop_preference('xyz_lexer_pref1');
  3  end;
  4  /
PL/SQL procedure successfully completed.
SCOTT@orcl_11g> begin
  2    ctx_ddl.drop_preference('STEM_FUZZY_PREF');
  3  end;
  4  /
PL/SQL procedure successfully completed.
SCOTT@orcl_11g> begin
  2    ctx_ddl.create_section_group('xyz_xml_group','XML_SECTION_GROUP');
  3    ctx_ddl.add_field_section('xyz_xml_group','abLName','j:PersonGivenName');
  4    ctx_ddl.add_field_section('xyz_xml_group','abFName','j:PersonSurName');
  5  end;
  6  /
PL/SQL procedure successfully completed.
SCOTT@orcl_11g> begin
  2    ctx_ddl.create_preference('STEM_FUZZY_PREF','BASIC_WORDLIST');
  3    ctx_ddl.set_attribute('STEM_FUZZY_PREF','SUBSTRING_INDEX','TRUE');
  4  end;
  5  /
PL/SQL procedure successfully completed.
SCOTT@orcl_11g> begin
  2    ctx_ddl.set_attribute('STEM_FUZZY_PREF','PREFIX_INDEX','YES');
  3  end;
  4  /
PL/SQL procedure successfully completed.
SCOTT@orcl_11g> begin
  2    ctx_ddl.create_preference('xyz_lexer_pref1','BASIC_LEXER');
  3    ctx_ddl.set_attribute('STEM_FUZZY_PREF','WILDCARD_MAXTERMS','15000');
  4  end;
  5  /
PL/SQL procedure successfully completed.
SCOTT@orcl_11g> drop index xyz_indexes_idx
  2  /
Index dropped.
SCOTT@orcl_11g> DROP TABLE xyz_indexes
  2  /
Table dropped.
SCOTT@orcl_11g> CREATE TABLE xyz_indexes
  2    (xyzcolumn  XMLTYPE)
  3  /
Table created.
SCOTT@orcl_11g> INSERT INTO xyz_indexes VALUES
  2  (XMLTYPE (
  3  '<?xml version="1.0" encoding="utf-8"?>
  4  <ab:IncidentReportGroup xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:j="http://www.it.ojp.gov/jxdm/3.0.3" xmlns:ext="http://xml.abc.com/jxdm/3.0.3/extension" xmlns:ab="http://xml.abc.com/jxdm/3.0.3">
  5    <ab:IncidentReport>
  6        <ext:IncidentSubject>
  7          <j:PersonName>
  8            <j:PersonGivenName>LORI</j:PersonGivenName>
  9            <j:PersonMiddleName />
10            <j:PersonSurName>"BELAND"</j:PersonSurName>
11            <j:PersonSuffixName />
12            <j:PersonFullName>abc, xyz </j:PersonFullName>
13          </j:PersonName>
14        </ext:IncidentSubject>
15        <ext:ActivityComplainantPerson>
16          <j:PersonName>
17            <j:PersonGivenName>abc</j:PersonGivenName>
18            <j:PersonMiddleName />
19            <j:PersonSurName>xyz</j:PersonSurName>
20            <j:PersonSuffixName />
21            <j:PersonFullName>abc, xyz </j:PersonFullName>
22          </j:PersonName>
23        </ext:ActivityComplainantPerson>
24        <ext:ActivityWitness>
25          <j:PersonName>
26            <j:PersonGivenName>abc</j:PersonGivenName>
27            <j:PersonMiddleName />
28            <j:PersonSurName>xyz</j:PersonSurName>
29            <j:PersonSuffixName />
30            <j:PersonFullName>abc, xyz </j:PersonFullName>
31          </j:PersonName>
32        </ext:ActivityWitness>
33        <ext:ActivityVictim>
34          <j:PersonName>
35            <j:PersonGivenName>abc</j:PersonGivenName>
36            <j:PersonMiddleName />
37            <j:PersonSurName>xyz</j:PersonSurName>
38            <j:PersonSuffixName />
39            <j:PersonFullName>abc, xyz </j:PersonFullName>
40          </j:PersonName>
41        </ext:ActivityVictim>
42    </ab:IncidentReport>
43  </ab:IncidentReportGroup>'
44  ))
45  /
1 row created.
SCOTT@orcl_11g> create index xyz_indexes_idx on xyz_INDEXES(xyzcolumn) indextype is ctxsys.context parameters
  2  ('datastore ctxsys.direct_datastore wordlist STEM_FUZZY_PREF FILTER ctxsys.null_filter lexer xyz_lexer_pref1
  3  sync(on commit)SECTION GROUP xyz_xml_group MEMORY 500M ')
  4  /
Index created.
SCOTT@orcl_11g> select * from xyz_indexes where contains(xyzcolumn,'(LORI WITHIN abLName)
  2  & ("BELAND" WITHIN abFName)')>0
  3  /
XYZCOLUMN
<?xml version="1.0" encoding="utf-8"?>
<ab:IncidentReportGroup xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xm
lns:j="http://www.it.ojp.gov/jxdm/3.0.3" xmlns:ext="http://xml.abc.com/jxdm/3.0.
3/extension" xmlns:ab="http://xml.abc.com/jxdm/3.0.3">
  <ab:IncidentReport>
    <ext:IncidentSubject>
      <j:PersonName>
        <j:PersonGivenName>LORI</j:PersonGivenName>
        <j:PersonMiddleName />
        <j:PersonSurName>"BELAND"</j:PersonSurName>
        <j:PersonSuffixName />
        <j:PersonFullName>abc, xyz </j:PersonFullName>
      </j:PersonName>
    </ext:IncidentSubject>
    <ext:ActivityComplainantPerson>
      <j:PersonName>
        <j:PersonGivenName>abc</j:PersonGivenName>
        <j:PersonMiddleName />
        <j:PersonSurName>xyz</j:PersonSurName>
        <j:PersonSuffixName />
        <j:PersonFullName>abc, xyz </j:PersonFullName>
      </j:PersonName>
    </ext:ActivityComplainantPerson>
    <ext:ActivityWitness>
      <j:PersonName>
        <j:PersonGivenName>abc</j:PersonGivenName>
        <j:PersonMiddleName />
        <j:PersonSurName>xyz</j:PersonSurName>
        <j:PersonSuffixName />
        <j:PersonFullName>abc, xyz </j:PersonFullName>
      </j:PersonName>
    </ext:ActivityWitness>
    <ext:ActivityVictim>
      <j:PersonName>
        <j:PersonGivenName>abc</j:PersonGivenName>
        <j:PersonMiddleName />
        <j:PersonSurName>xyz</j:PersonSurName>
        <j:PersonSuffixName />
        <j:PersonFullName>abc, xyz </j:PersonFullName>
      </j:PersonName>
    </ext:ActivityVictim>
  </ab:IncidentReport>
</ab:IncidentReportGroup>
SCOTT@orcl_11g>