ADD_NDATA_SECTION

Use this procedure to find matches that are spelled in a similar way. The value of an NDATA section is extracted from the document text like other sections, but is indexed as name data. NDATA sections are stored in the CTX_USER_SECTIONS view.

Syntax

CTX_DDL.ADD_NDATA_SECTION(
   group_name    IN VARCHAR2,
   section_name  IN VARCHAR2,
   tag           IN VARCHAR2
);

group_name

Name of the group that contains the section.

section_name

Name of the NDATA section.

tag

Name of the tag that marks the start of a section. For example, if the tag is <H1>, specify H1. The start tag you specify must be unique within a section group.

Notes

NDATA sections support both single and multi-byte data, however, there are character- and term-based limitations. NDATA section data that is indexed is constrained as follows:

• number of characters in a single, white space delimited term

  511

• number of white space delimited terms

  255

• total number of characters, including white spaces

  511

NDATA section data that exceeds these constraints are truncated.

Example

The following example defines a section group namegroup of the BASIC_SECTION_GROUP type. It then creates an NDATA section in namegroup called firstname.

begin
  ctx_ddl.create_section_group('namegroup', 'BASIC_SECTION_GROUP');
  ctx_ddl.add_ndata_section('namegroup', 'firstname', 'fname1');
end;