Searching Problem, need help plz...

Question

Hi All,
I have a problem. After created index my_doc_idx1, i’m searching a word on all document i stored but find nothing. Everytime i search there’s no rows selected.
anybody help me please?
I including my code.
My documents are:
1. doc1.html contain:
“Oracle interMedia audio, document, image, and video is designed to manage Internet media content”
2. doc2.html contain:
“Oracle interMedia User’s Guide and Reference, Release 9.0.1”
3. word1.doc contain:
“Oracle application server.”
4. oracletext.pdf contain:
“Stages of Index Creation.”
Oracle9i 9 realese 2, Windows XP
Thanks,
Robby
set serveroutput on
set echo on
-- create table
create table my_doc (
id number,
document ordsys.orddoc);
INSERT INTO my_doc VALUES(1,ORDSYS.ORDDoc.init());
INSERT INTO my_doc VALUES(2,ORDSYS.ORDDoc.init());
INSERT INTO my_doc VALUES(3,ORDSYS.ORDDoc.init());
INSERT INTO my_doc VALUES(4,ORDSYS.ORDDoc.init());
COMMIT;
-- create directory
create or replace directory dir_doc as 'e:\projects'
-- import data
DECLARE
obj ORDSYS.ORDDoc;
ctx RAW(4000) := NULL;
BEGIN
SELECT document INTO obj FROM my_doc WHERE id = 1 FOR UPDATE;
obj.setSource('file','DIR_DOC','doc1.html');
obj.import(ctx,FALSE);
UPDATE my_doc SET document = obj WHERE id = 1;
COMMIT;
SELECT document INTO obj FROM my_doc WHERE id = 2 FOR UPDATE;
obj.setSource('file','DIR_DOC','doc2.html');
obj.import(ctx,FALSE);
UPDATE my_doc SET document = obj WHERE id = 2;
COMMIT;
SELECT document INTO obj FROM my_doc WHERE id = 3 FOR UPDATE;
obj.setSource('file','DIR_DOC','word1.doc');
obj.import(ctx,FALSE);
UPDATE my_doc SET document = obj WHERE id = 3;
COMMIT;
SELECT document INTO obj FROM my_doc WHERE id = 4 FOR UPDATE;
obj.setSource('file','DIR_DOC','oracletext.pdf');
obj.import(ctx,FALSE);
UPDATE my_doc SET document = obj WHERE id = 4;
COMMIT;
END;
-- check properties
DECLARE
obj ORDSYS.ORDDoc;
idnum INTEGER;
ext VARCHAR2(5);
dotpos INTEGER;
mimetype VARCHAR2(50);
fname VARCHAR2(50);
ctx RAW(4000) := NULL;
BEGIN
fname:= '';
DBMS_OUTPUT.PUT_LINE('----------------------------------------');
FOR I IN 1..4 LOOP
SELECT id, document INTO idnum, obj FROM my_doc
WHERE id = I;
fname := obj.getSourceName();
dotpos := INSTR(fname, '.');
IF dotpos != 0 THEN
ext := LOWER(SUBSTR(fname, dotpos + 1));
ext := LOWER(ext);
mimetype := 'application/' || ext;
IF ext = 'doc' THEN
mimetype := 'application/msword';
obj.setFormat('DOC');
ELSIF ext = 'pdf' THEN
mimetype := 'application/pdf';
obj.setFormat('PDF');
ELSIF ext = 'ppt' THEN
mimetype := 'application/vnd.ms-powerpoint';
obj.setFormat('PPT');
ELSIF ext = 'txt' THEN
obj.setFormat('TXT');
END IF;
obj.setMimetype(mimetype);
END IF;
DBMS_OUTPUT.PUT_LINE('Document ID: ' || idnum);
IF TO_CHAR(DBMS_LOB.getLength (obj.getContent())) = 0 THEN
DBMS_OUTPUT.PUT_LINE('Content is NULL.');
DBMS_OUTPUT.PUT_LINE('No information available.');
ELSIF TO_CHAR(DBMS_LOB.getLength (obj.getContent())) <> 0 THEN
DBMS_OUTPUT.PUT_LINE('Document Source: ' || obj.getSource());
DBMS_OUTPUT.PUT_LINE('Document Name: ' || obj.getSourceName());
DBMS_OUTPUT.PUT_LINE('Document Type: ' || obj.getSourceType());
DBMS_OUTPUT.PUT_LINE('Document Location: ' || obj.getSourceLocation());
DBMS_OUTPUT.PUT_LINE('Document MIME Type: ' || obj.getMimeType());
DBMS_OUTPUT.PUT_LINE('Document File Format: ' || obj.getFormat());
DBMS_OUTPUT.PUT_LINE('BLOB Length: ' || TO_CHAR(DBMS_LOB.getLength (obj.getContent())));
END IF;
DBMS_OUTPUT.PUT_LINE('----------------------------------------');
END LOOP;
EXCEPTION
END;
-- create index
create index my_doc_idx1
on my_doc(document.comments)
indextype is ctxsys.context;
commit;
alter index my_doc_idx1
rebuild online
parameters('sync memory 10m');
-- searching
select id from my_doc t
where contains(t.document.comments,'oracle') > 0
order by id;
select id from my_doc t
where contains(t.document.comments,'application server') > 0
order by id;
select id from my_doc t
where contains(t.document.comments,'index creation') > 0
order by id;

Answer 1

Hi,
Which is best depends on the type of application you are building and the nature of the docs. For simple use with pdf's and word docs I prefer to use bfile or blob which is why I mentioned it. No sense in overcomplicating it.
My recommendation - look at the interMedia docs and determine if you need the advanced features it provides. I like the application a lot, but am a firm believer in not adding complexity if there is no benefit to be had. Unless you are just playing around with it to learn, I'd recommend matching your project requirements up with what best meets them and go whichever route that is.
Thanks,
Ron