Attribute Searching

You can search XML attribute text in one of two ways:

• Creating Attribute Sections

  Create attribute sections with CTX_DDL.ADD_ATTR_SECTION and then index with XML_SECTION_GROUP. If you use AUTO_SECTION_GROUP when you index, attribute sections are created automatically. You can query attribute sections with the WITHIN operator.

  Consider an XML file that defines the BOOK tag with a TITLE attribute:

  <BOOK TITLE="Tale of Two Cities"> It was the best of times. </BOOK>

  To define the title attribute as an attribute section, create an XML_SECTION_GROUP and define the attribute section:

  begin ctx_ddl.create_section_group('myxmlgroup', 'XML_SECTION_GROUP'); ctx_ddl.add_attr_section('myxmlgroup', 'booktitle', 'book@title'); end;

  To index:

  CREATE INDEX myindex ON xmldocs(xmlfile) INDEXTYPE IS ctxsys.context PARAMETERS ('datastore ctxsys.default_datastore filter ctxsys.null_filter section group myxmlgroup' );

  To query the booktitle XML attribute section:

  'Cities within booktitle'

• Searching Attributes with the INPATH Operator

  Index with the PATH_SECTION_GROUP and query attribute text with the INPATH operator.

See Also: “Path Section Searching”