Can i get the content of a HTML tag?

Question

I would like knowing if it is possible,
instead of getting all the document where the searched string is found,
i can get only the content of a tag
in other words, I have defined the following index:
CTX_DDL.CREATE_SECTION_GROUP('htmlgroup', 'HTML_SECTION_GROUP');
CTX_DDL.ADD_ZONE_SECTION('htmlgroup', 'titulo', 'TITLE');
CREATE INDEX index_string ON table(field_to_indexing)
INDEXTYPE IS CTXSYS.CONTEXT PARAMETERS ('SECTION GROUP htmlgroup');
SELECT field FROM table WHERE CONTAINS('searching string' WITHIN titulo) > 0;
The index works just fine and makes the searching correctly, but it returns back the whole document,
and I wanted it to return just the content of the TITLE tag. I would like to know if this is possible.

Answer 1

It is possible if you are using the XMLType operators available in 9i. A short article describe this approach http://otn.oracle.com/products/oracle9i/daily/nov30.html
Now, if you are not using 9i you can still do it but at the application level. You need to get a "chunk" of the document and then perform
substring searching to extract the content of the title tag.
I would like knowing if it is possible,
instead of getting all the document where the searched string is found,
i can get only the content of a tag
in other words, I have defined the following index:
CTX_DDL.CREATE_SECTION_GROUP('htmlgroup', 'HTML_SECTION_GROUP');
CTX_DDL.ADD_ZONE_SECTION('htmlgroup', 'titulo', 'TITLE');
CREATE INDEX index_string ON table(field_to_indexing)
INDEXTYPE IS CTXSYS.CONTEXT PARAMETERS ('SECTION GROUP htmlgroup');
SELECT field FROM table WHERE CONTAINS('searching string' WITHIN titulo) > 0;
The index works just fine and makes the searching correctly, but it returns back the whole document,
and I wanted it to return just the content of the TITLE tag. I would like to know if this is possible.