Number Search using Oracle Text

Hi,
I'm new to Oracle Text. I want to implement search for the unique ids. Like google search when the user start typing 123 it need to brings anything starting with 123 and has show like entries how google will shows. When I add number 4 to like 1234 then it has bring numbers starting with 1234. Any body suggest me what is the best approach to implement this. Do we have any examples for this kind requirement. If any please share. That will be a big help for me.
In advance thanks a lot for the help.
Thanks & Regards,
Ramana.

Oracle Text is intended primarily for character data, but you can treat the numbers as characters. I have provided an example below.
SCOTT@orcl_11gR2> CREATE TABLE test_tab (id NUMBER, dummy VARCHAR2(1))
2 /
Table created.
SCOTT@orcl_11gR2> INSERT INTO test_tab (id)
2 SELECT object_id FROM all_objects
3 /
74986 rows created.
SCOTT@orcl_11gR2> BEGIN
2    CTX_DDL.CREATE_PREFERENCE ('test_mds', 'MULTI_COLUMN_DATASTORE');
3    CTX_DDL.SET_ATTRIBUTE ('test_mds', 'COLUMNS', 'TO_CHAR(id) id');
4 END;
5 /
PL/SQL procedure successfully completed.
SCOTT@orcl_11gR2> CREATE INDEX id_idx ON test_tab (dummy)
2 INDEXTYPE IS CTXSYS.CONTEXT
3 PARAMETERS ('DATASTORE test_mds')
4 /
Index created.
SCOTT@orcl_11gR2> VARIABLE search_string VARCHAR2(100)
SCOTT@orcl_11gR2> EXEC :search_string := '123'
PL/SQL procedure successfully completed.
SCOTT@orcl_11gR2> SELECT DISTINCT id
2 FROM   test_tab
3 WHERE CONTAINS (dummy, :search_string || '%') > 0
4 /
        ID
       123
     12316
     12323
     12329
     12348
     12350
     12354
     12366
     12372
     12373
     12375
     12376
     12392
     12396
      1238
     12303
     12306
     12313
     12330
     12332
     12344
     12361
     12365
     12369
     12371
     12395
    123750
     12308
     12320
     12326
     12337
     12340
     12346
     12349
     12370
     12386
     12387
     12397
      1233
      1234
      1236
      1237
     12300
     12301
     12302
     12305
     12309
     12311
     12319
     12338
     12345
     12355
     12359
     12362
     12377
     12388
     12390
     12391
     12398
      1239
     12304
     12307
     12360
     12318
     12325
     12335
     12339
     12353
     12357
     12358
     12394
     12312
     12317
     12328
     12327
     12331
     12333
     12351
     12352
     12356
     12363
     12364
     12367
     12368
     12393
      1235
     12310
     12314
     12324
     12334
     12336
     12341
     12347
     12374
     12389
     12399
96 rows selected.
SCOTT@orcl_11gR2> EXEC :search_string := '1234'
PL/SQL procedure successfully completed.
SCOTT@orcl_11gR2> /
        ID
     12348
     12344
     12340
     12346
     12349
      1234
     12345
     12341
     12347
9 rows selected.

Similar Messages

Product Search Using Oracle Text or By Any Other Methods using PL/SQL

Hi All,
I have requirement for product search using the product table which has around 5 million products. I Need to show top 100 disitnct products searched in the following order
1. = ProductDescription
2. ProductDescription_%
3. %_ProductDescription_%
4. %_ProductDescription
5. ProductDescription%
6. %ProductDescription
Where '_' is space. If first two/three/or any criteria itslef gives me 100 records then i need not search for another patterns
Table Structure Is as follows
Create Table Tbl_Product_Lookup
    Barcode_number                Varchar2(9),
    Product_Description Varchar2(200),
    Product_Start_Date Date,
    Product_End_Date Date,
    Product_Price Number(12,4)
Could you please help me implementing this one ? SLA for the search result is 2 seconds
Thanks,
Varun

You could use an Oracle Text context index with a wordlist to speed up substring searches and return all rows that match any of your criteria, combined with a case statement to provide a ranking that can be ordered by within an inner query, then use rownum to limit the rows in an outer query. You could also use the first_rows(n) hint to speed up the return of limited rows. Please see the demonstration below. If you decide to use Oracle Text, you may want to ask further questions in the Oracle Text sub-forum on this forum or space or whatever they call it now.
SCOTT@orcl_11gR2> -- table:
SCOTT@orcl_11gR2> Create Table Tbl_Product_Lookup
2    (
3       Barcode_number       Varchar2(9),
4       Product_Description Varchar2(200),
5       Product_Start_Date   Date,
6       Product_End_Date     Date,
7       Product_Price          Number(12,4)
8    )
9 /
Table created.
SCOTT@orcl_11gR2> -- sample data:
SCOTT@orcl_11gR2> insert all
2 into tbl_product_lookup (product_description) values ('test product')
3 into tbl_product_lookup (product_description) values ('test product and more')
4 into tbl_product_lookup (product_description) values ('another test product and more')
5 into tbl_product_lookup (product_description) values ('another test product')
6 into tbl_product_lookup (product_description) values ('test products')
7 into tbl_product_lookup (product_description) values ('selftest product')
8 select * from dual
9 /
6 rows created.
SCOTT@orcl_11gR2> insert into tbl_product_lookup (product_description) select object_name from all_objects
2 /
75046 rows created.
SCOTT@orcl_11gR2> -- wordlist:
SCOTT@orcl_11gR2> begin
2    ctx_ddl.create_preference('mywordlist', 'BASIC_WORDLIST');
3    ctx_ddl.set_attribute('mywordlist','PREFIX_INDEX','TRUE');
4    ctx_ddl.set_attribute('mywordlist','PREFIX_MIN_LENGTH', '3');
5    ctx_ddl.set_attribute('mywordlist','PREFIX_MAX_LENGTH', '4');
6    ctx_ddl.set_attribute('mywordlist','SUBSTRING_INDEX', 'YES');
7    ctx_ddl.set_attribute('mywordlist', 'wildcard_maxterms', 0) ;
8 end;
9 /
PL/SQL procedure successfully completed.
SCOTT@orcl_11gR2> -- context index that uses wordlist:
SCOTT@orcl_11gR2> create index prod_desc_text_idx
2 on tbl_product_lookup (product_description)
3 indextype is ctxsys.context
4 parameters ('wordlist mywordlist')
5 /
Index created.
SCOTT@orcl_11gR2> -- gather statistics:
SCOTT@orcl_11gR2> exec dbms_stats.gather_table_stats (user, 'TBL_PRODUCT_LOOKUP')
PL/SQL procedure successfully completed.
SCOTT@orcl_11gR2> -- query:
SCOTT@orcl_11gR2> variable productdescription varchar2(100)
SCOTT@orcl_11gR2> exec :productdescription := 'test product'
PL/SQL procedure successfully completed.
SCOTT@orcl_11gR2> column product_description format a45
SCOTT@orcl_11gR2> set autotrace on explain
SCOTT@orcl_11gR2> set timing on
SCOTT@orcl_11gR2> select /*+ FIRST_ROWS(100) */ *
2 from   (select /*+ FIRST_ROWS(100) */ distinct
3              case when product_description = :productdescription            then 1
4               when product_description like :productdescription || ' %'       then 2
5               when product_description like '% ' || :productdescription || ' %' then 3
6               when product_description like '% ' || :productdescription       then 4
7               when product_description like :productdescription || '%'       then 5
8               when product_description like '%' || :productdescription       then 6
9              end as ranking,
10              product_description
11           from   tbl_product_lookup
12           where contains (product_description, '%' || :productdescription || '%') > 0
13           order by ranking)
14 where rownum <= 100
15 /
   RANKING PRODUCT_DESCRIPTION
         1 test product
         2 test product and more
         3 another test product and more
         4 another test product
         5 test products
         6 selftest product
6 rows selected.
Elapsed: 00:00:00.10
Execution Plan
Plan hash value: 459057338
| Id | Operation                      | Name               | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT               |                    |    38 | 3990 |    13 (16)| 00:00:01 |
|* 1 | COUNT STOPKEY                 |                    |       |       |            |          |
|   2 |   VIEW                         |                    |    38 | 3990 |    13 (16)| 00:00:01 |
|* 3 |    SORT UNIQUE STOPKEY         |                    |    38 |   988 |    12   (9)| 00:00:01 |
|   4 |     TABLE ACCESS BY INDEX ROWID| TBL_PRODUCT_LOOKUP |    38 |   988 |    11   (0)| 00:00:01 |
|* 5 |      DOMAIN INDEX              | PROD_DESC_TEXT_IDX |       |       |     4   (0)| 00:00:01 |
Predicate Information (identified by operation id):
   1 - filter(ROWNUM<=100)
   3 - filter(ROWNUM<=100)
   5 - access("CTXSYS"."CONTAINS"("PRODUCT_DESCRIPTION",'%'||:PRODUCTDESCRIPTION||'%')>0)
SCOTT@orcl_11gR2>

Searching using Oracle Text instead of LIKE '%'

Hello all,
I hope you help me in this:
I have a table looks like this
create table subscribers (
id numer(10),
first_name varchar2(30),
father_name varchar2(30),
grandfather_name varchar2(30),
last_name varchar2(30))
The application is built using Oracle Forms. Many times, the end users are not so sure of the spelling of the name, therefore they use the "%" wildcard with name fields. This will be reflected to the queries the application will send them to the Oracle Server.
We have the following queries
1) select *
from subscribers
where last_name like '%family_name%';
2) select *
from subscribers
where last_name like 'family_name%';
3) select *
from subscribers
where last_name like '%family_name%' and first_name like '%first_name%';
4) select *
from subscribers
where last_name like 'family_name%' and first_name like 'first_name%';
As well as searching on the father_name and grandfather_name fields. But most of the search are on the first_name and the last_name.
These queries are killing the server since we have millions of records. BTree indexes will not help here because of the LIKE and the "%"
I am thinking to use Oracle Text here, but I am not sure whether I have to go for a CONTEXT index on each individual column, or I can use the MULTI_COLUMN_DATASTORE indexing.
Any idea will be appreciated

The ctxcat index and catsearch operator are generally intended for usage with one text column and one or more columns of structured data. You would have to pick just one of your columns as the text column and the others as structured columns. I would be more inclined to use the multi_column_datastore with a context index and contains operator, so that you can search all of your columns as text columns.

Problem with blob column index created using Oracle Text.

Hi,
I'm running Oracle Database 10g 10.2.0.1.0 standard edition one, on windows server 2003 R2 x64.
I have a table with a blob column which contains pdf document.
Then, I create an index using the following script so that I can do fulltext search using Oracle Text.
CREATE INDEX DMCS.T_DMCS_FILE_DF_FILE_IDX ON DMCS.T_DMCS_FILE
(DF_FILE)
INDEXTYPE IS CTXSYS.CONTEXT
PARAMETERS('DATASTORE CTXSYS.DEFAULT_DATASTORE');
However, the index is not searchable and I check the following tables created by database for my index and found them to be empty as well !!
DR$T_DMCS_FILE_DF_FILE_IDX$I
DR$T_DMCS_FILE_DF_FILE_IDX$K
DR$T_DMCS_FILE_DF_FILE_IDX$N
DR$T_DMCS_FILE_DF_FILE_IDX$R
I wonder what's wrong with it.
My user has been granted the ctx_app role and I have other tables that store plain text which I use Oracle Text are fine. I even output the blob column and save as pdf file and they are fine.
However the database seems like not indexing my blob column although the index can be created without error.
Please advise.
Really appreciate anyone who can help.
Thank you.

The situation is I have already loaded a few pdf document into the table's blob column.
After I create the Oracle text index on this blob column, I find the system generated index tables listed in my earlier posting are empty, except for the 4th table.
Normally we'll see words inside the table where those are the words indexed by oracle text on my document.
As a result, no matter how i search for the index using select statement with contains operator, it will not give me any result.
I feel weird why the blob is not indexed. The content of the blob are actually valid because I tested this by export the content back to pdf and I can still view and search within the pdf.
Regards,
Jap.

Using Oracle Text to search through WORD, EXCEL and PDF documents

Hello again,
What I would like to know is if I have a WORD or PDF document stored in a table. Is it possible to use Oracle Text to search through the actual WORD or PDF document?
Thanks
Doug

Yes you can do context sensitive searches on both PDF and Word docs. With the PDF you need to make sure they are text and not images. Some scanners will create PDFs that are nothing more than images of document.
Below is code sample that I made some time back to demonstrate the searching capabilities of Oracle Text. Note that the example makes use of the inso_filter that is no longer shipped with Oracle begging with Patch set 10.1.0.4. See metalink note 298017.1 for the changes. See the following link for more information on developing with Oracle Text.
http://download-west.oracle.com/docs/cd/B14117_01/text.101/b10729/toc.htm
begin example.
-- The following needs to be executed
-- as sys.
DROP DIRECTORY docs_dir;
CREATE OR REPLACE DIRECTORY docs_dir
AS 'C:\sql\oracle_text\documents';
GRANT READ ON DIRECTORY docs_dir TO text;
-- End sys ran SQL
DROP TABLE db_docs CASCADE CONSTRAINTS PURGE;
CREATE TABLE db_docs (
id NUMBER,
format VARCHAR2(10),
location VARCHAR2(50),
document BLOB,
CONSTRAINT i_db_docs_p PRIMARY KEY(id)
-- Several notes need to be made about this anonymous block.
-- First the 'DOCS_DIR' parameter is a directory object name.
-- This directory object name must be in upper case.
DECLARE
f_lob BFILE;
b_lob BLOB;
document_name VARCHAR2(50);
BEGIN
document_name := 'externaltables.doc';
INSERT INTO db_docs
VALUES (1, 'binary', 'C:\sql\oracle_text\documents\externaltables.doc', empty_blob())
RETURN document INTO b_lob;
f_lob := BFILENAME('DOCS_DIR', document_name);
DBMS_LOB.FILEOPEN(f_lob, DBMS_LOB.FILE_READONLY);
DBMS_LOB.LOADFROMFILE(b_lob, f_lob, DBMS_LOB.GETLENGTH(f_lob));
DBMS_LOB.FILECLOSE(f_lob);
COMMIT;
END;
-- build the index
-- Note that this index differs than the file system stored file
-- in that paramter datastore is ctxsys.defautl_datastore and not
-- ctxsys.file_datastore. FILE_DATASTORE is for documents that
-- exist on the file system. DEFAULT_DATASTORE is for documents
-- that are stored in the column.
create index db_docs_ctx on db_docs(document)
indextype is ctxsys.context
parameters (
'datastore ctxsys.default_datastore
filter ctxsys.inso_filter
format column format');
--search for something that is known to not be in the document.
SELECT SCORE(1), id, location
FROM db_docs
WHERE CONTAINS(document, 'Jenkinson', 1) > 0;
--search for something that is known to be in the document.
SELECT SCORE(1), id, location
FROM db_docs
WHERE CONTAINS(document, 'Albright', 1) > 0;

Using oracle text in apex report search

I am trying to use oracle text in apex, integrating it in an existing application. The idea is that it will allow to do a search in bigger textfields. Thats how I want it to get to work. In one of the oracle packaged applications oracle text is used as well, so I will have a look to that as well. I've addapted this search. I've added
AND t. contains(oplossing, :P15_OPLOSSING)
AND t.contains(sleutelwoorden, :P15_SLEUTELWOORDEN)
That didn't work, so I changed those two to:
AND t.oplossing = (t.contains(oplossing, :P15_OPLOSSING)>0)
AND t.sleutelwoorden = (t.contains(sleutelwoorden, :P15_SLEUTELWOORDEN)>0)
which didn't work either, which I expected to be the case. Clearly I'm not doing it correctly, I intend to look it up tonight in the packaged applications as I do want to findt it myself to.
But does anyone can give a hint, on what I am doing wrong ?
SELECT t.ticketid ticketnr, t.ticketid,
g.voornaam||' '||g.naam aangemaaktdoor,
t.credt, t.applicatiecd, t.titel,
s.statusdefoms,
si.statusdefoms instat,
NVL2(t.toegekend,'Y','N') toegekend,
sleutelwoorden, klantprioriteitid, oplossing, s.htmlkleur, si.htmlkleur inthtmlkleur
FROM ticket t,
gebruiker g,
status s,
status si
WHERE t.gebruikerid = g.gebruikerid
AND t.statusid = s.statusid
AND t.statusinternid = si.statusid (+)
AND t.applicatiecd = NVL(:P0_APPLICATIECD, :F101_APPLICATIECD)
AND (t.categorieid = :P15_CATEGORIEID OR NVL(:P15_CATEGORIEID, 0) = 0)
AND (t.moduleid = :P15_MODULEID OR NVL(:P15_MODULEID, 0) = 0)
AND (t.statusid = :P15_STATUSID OR NVL(:P15_STATUSID, 0) = 0)
AND (t.statusinternid = :P15_INTSTATUSID OR NVL(:P15_INTSTATUSID, 0) = 0)
AND (t.versieid = :P15_VERSIEID OR NVL(:P15_VERSIEID, 0) = 0)
AND t.ticketid LIKE '%'||:P15_TICKETID||'%'
AND t.gebruikerid = DECODE(NVL(:P15_GEBRUIKERID,0), 0, t.gebruikerid, :P15_GEBRUIKERID)
AND t.credt BETWEEN NVL(:P15_DATUMVAN, To_Date('01-01-1900', 'DD-MM-YYYY')) AND NVL(To_Date(:P15_DATUMTOT, 'DD-MM-YYYY'), sysdate) +1
AND t.titel LIKE '%'||:P15_TITEL||'%'
AND t. contains(oplossing, :P15_OPLOSSING)
AND t.contains(sleutelwoorden, :P15_SLEUTELWOORDEN)
AND PCK$Ticket_Admin.getklantid(t.gebruikerid) = DECODE(Pck$Ticket_Admin.isklantadminroleN(:APP_USER,NVL(:P0_APPLICATIECD, :F101_APPLICATIECD)), 1, PCK$Ticket_Admin.getklantid(:APP103_GEBRUIKERID), PCK$Ticket_Admin.getklantid(t.gebruikerid))
AND (:APP103_GEBRUIKERID IN (t.voor_gebruikerid, t.gebruikerid)
OR Pck$Ticket_Admin.isintern(:APP_USER,:P0_APPLICATIECD) = 1)
changed to:
AND t.oplossing = (t.contains(oplossing, :P15_OPLOSSING)>0)
AND t.sleutelwoorden = (t.contains(sleutelwoorden, :P15_SLEUTELWOORDEN)>0)

I have worked it further out now, and looked at the search of the packaged application. It turned out to be a pl/sql block . I used what I found in there to adapt the previous search. I added the following:
OR (CONTAINS(t.oplossing, :P15_OPLOSSING)>0)
OR (CONTAINS(t.sleutelwoorden, :P15_SLEUTELWOORDEN)>0)
     OR (CONTAINS(t.titel,:P15_SEARCH_T_O_S)>0 OR
     CONTAINS (t.oplossing, :P15_SEARCH_T_O_S)>0 OR
     CONTAINS(t.sleutelwoorden, :P15_SEARCH_T_O_S)>0 )
OR (CONTAINS(t.titel,:P15_SEARCH_T_O_S)>0 AND
     CONTAINS (t.oplossing, :P15_SEARCH_T_O_S)>0 AND
     CONTAINS(t.sleutelwoorden, :P15_SEARCH_T_O_S)>0 )
oplossing means solution
sleutelwoorden means keywords
titel means title
Yet this doesn't work yet. It gives an error message:
failed to parse SQL query:
ORA-01719: outer join operator (+) not allowed in operand of OR or IN
I've tried adding the addition in a different place, yet that gives the same error message. I'm not sure now.

Oracle iRecruitment: Keyword Search within Resumes using Oracle Text

Dear All,
As per my understanding (and Note: 247064.1) simple Keyword searches can be performed in iRecruitment if oracle Text is installed. However searching for Keywords within resumes is not possible using Oracle Text and is possible ONLY if Resume Parsing is enabled via a third party (non-oracle) service provider.
Can you please let me know if my understanding is correct and if not provide further inputs on this.
Thanks,
Subrat

Got this confirmation from Oracle via SR:
Resume searching is independent of resume parsing and not required to search resumes.
Oracle Text is the text engine that allows you to search documents using content-based queries. Oracle Text allows you to upload documents, search documents, parse resumes, etc.
Hence to conclude - Installation of Oracle Text will allow Keyword Searches on resumes.
Thanks,
Subrat

Using Oracle Text for searching with UCM 10g

I am using Oracle text with UCM 10gR3 and Site Studio 10gR4 and I am trying to sort the search results by relevancy and to also include a snippet of the retrieved document. I have the fields that the SS_GET_SEARCH_RESULTS service returns but the relevancy score is always equals 5 and the snippet contains characters such as < idcnull, /p, etc., which you can see are XML/HTML/UCM tags but which result sin even more strangeness in the snippet if I try to remove them programmatically.
I have read the Oracle Text documentation and there appear to be ways you can configure Oracle Text but I am not clear at all on what I can do from UCM. It looks like the configuration is either done in database tables or in the query itself, neither of which are readily configurable to me.
Is anyone experienced in this or know of any documentation this might help?
Bill

Hi
If I remember correctly then this issue was seen with an older version of OTS component and Core Update patch / bundle . Upgrade the UCM instance with the latest CS10gr35 update bundle patchset 6907073 and also upgrade OTS component from the same patchset .
Let me know how it goes after this .
Thanks
Srinath

Document management system using oracle text

i plan to create document management system using oracle text with following features
1) document comparision
2) document search
and more...
can oracle text be used to display documents of various formats by converting them to HTML. and can search keywords be highlighted in the document.
please help!

Have you ever considered doing this in Oracle Application Express (free on top of the Oracle database)? How about something like:
http://download-west.oracle.com/docs/cd/B31036_01/doc/appdev.22/b28839/up_dn_files.htm
Index the files using the CONTEXT index, and perhaps the docs' meta with it using the Oracle Text MULTI_COLUMN_DATASTORE, and then when you write your query for a report on the documents include a search string.
I've created a number of APEX-based document management systems and it is quite easy once you get the hang of using this environment. I suggest looking at some of the tutorials/how-to documents and you'll be on your way quickly.
Start with the upload application. Once you can get your documents in, create a report that shows everything except the document. Verify all of this works correctly.
Add some "items" to the page for the report, and include them as bind variables in the where clause.
After that, add your Oracle Text index to the database, and toss in a "text-field" item to the APEX page. Modify your report query, adding the CONTAINS clause, and use the newly created item as a bind variable. There's your keyword search.
Linking to Oracle Apps is done through API's and may be over database links.
Hope it helps. Though not a step-by-step how to document, this should point you in the right direction. Get familiar with APEX as that covers most of what you described.
-Ron

Address Matching Using Oracle Text

Hi,
I am a newbie to Oracle Text. Hence please pardon my ignorance if this is a "RTFM" Query.
We would like to clash our customer addresses against a table (GEO) that has addresses and geographic coordinates (latitude, longitude etc). The customer address data are in four VARCHAR2 columns (address1, address2, address3 & address4) and need not be in the same order as the address data in the GEO table.
Has anybody used Oracle Text to do similar work to score addresses?
Any links & pointers will be highly appreciated.
Thanks in advance.
Best Regards
Ramdas

When you use a multi_column_datastore, even though the index is only created using one column name and only that column name is used in the contains clause, it searches all columns named in the multi_column_datastore. It may be clearer if you use a dummy column with a name that has more meaning; I have used addresses in the revised example below.
Queries run faster if you put everything in one contains clause instead of using multiple contains clauses.
If you add a section group and field sections, then you can search within those sections and apply weights. In the following example I have doubled the score for results in address1 and address2 and halved the score for results in address3 and address4.
SCOTT@orcl_11gR2> CREATE TABLE customers
2    (id       NUMBER,
3      address1 VARCHAR2(30),
4      address2 VARCHAR2(30),
5      address3 VARCHAR2(30),
6      address4 VARCHAR2(30),
7      addresses VARCHAR2(1))
8 /
Table created.
SCOTT@orcl_11gR2> INSERT INTO customers VALUES
2    (1, '123 Somewhere, Someplace', 'nowhere', 'nowhere', 'nowhere', null)
3 /
1 row created.
SCOTT@orcl_11gR2> INSERT INTO customers VALUES
2    (2, 'nowhere', 'nowhere', 'nowhere', '123 Somewhere, Someplace', null)
3 /
1 row created.
SCOTT@orcl_11gR2> INSERT INTO customers VALUES
2    (3, 'nowhere', '500 Oracle Pkwy', 'nowhere', 'nowhere', null)
3 /
1 row created.
SCOTT@orcl_11gR2> INSERT INTO customers VALUES
2    (4, 'nowhere', 'nowhere', '500 Oracle Pkwy', 'nowhere', null)
3 /
1 row created.
SCOTT@orcl_11gR2>
SCOTT@orcl_11gR2> BEGIN
2    CTX_DDL.CREATE_PREFERENCE
3       ('cust_datastore',
4        'MULTI_COLUMN_DATASTORE');
5    CTX_DDL.SET_ATTRIBUTE
6       ('cust_datastore',
7        'COLUMNS',
8        'address1, address2, address3, address4');
9    CTX_DDL.CREATE_SECTION_GROUP
10       ('cust_sg', 'BASIC_SECTION_GROUP');
11    CTX_DDL.ADD_FIELD_SECTION ('cust_sg', 'address1', 'address1', true);
12    CTX_DDL.ADD_FIELD_SECTION ('cust_sg', 'address2', 'address2', true);
13    CTX_DDL.ADD_FIELD_SECTION ('cust_sg', 'address3', 'address3', true);
14    CTX_DDL.ADD_FIELD_SECTION ('cust_sg', 'address4', 'address4', true);
15 END;
16 /
PL/SQL procedure successfully completed.
SCOTT@orcl_11gR2> CREATE INDEX customers_idx
2 ON customers (addresses)
3 INDEXTYPE IS CTXSYS.CONTEXT
4 PARAMETERS
5    ('DATASTORE     cust_datastore
6       SECTION GROUP cust_sg')
7 /
Index created.
SCOTT@orcl_11gR2> CREATE TABLE geo
2    (address      VARCHAR2(40),
3      coordinates VARCHAR2(30))
4 /
Table created.
SCOTT@orcl_11gR2> INSERT INTO geo VALUES
2    ('500 Oracle Pkwy, Redwood City, CA 94065',
3      '37° 31'' N / 122° 15'' W')
4 /
1 row created.
SCOTT@orcl_11gR2> INSERT INTO geo VALUES
2    ('123 Somewhere Street, Someplace City, CA',
3      NULL)
4 /
1 row created.
SCOTT@orcl_11gR2> SELECT SCORE(1), c.*, g.address, g.coordinates
2 FROM   customers c,
3          (SELECT address,
4               '(' || REPLACE (REPLACE (address, ' ', ','), ',,', ',') || ')' addr,
5               coordinates
6           FROM   geo) g
7 WHERE CONTAINS
8            (c.addresses,
9             '((' || g.addr || ' WITHIN address1 OR ' ||
10                  g.addr || ' WITHIN address2) * 2) OR ' ||
11             '((' || g.addr || ' WITHIN address3 OR ' ||
12                  g.addr || ' WITHIN address4) * 0.5)',
13             1) > 0
14 ORDER BY SCORE(1) DESC
15 /
SCORE(1)         ID ADDRESS1
ADDRESS2                       ADDRESS3
ADDRESS4                       A ADDRESS
COORDINATES
        68          1 123 Somewhere, Someplace
nowhere                        nowhere
nowhere                          123 Somewhere Street, Someplace City, CA
        59          3 nowhere
500 Oracle Pkwy                nowhere
nowhere                          500 Oracle Pkwy, Redwood City, CA 94065
37° 31' N / 122° 15' W
        17          2 nowhere
nowhere                        nowhere
123 Somewhere, Someplace         123 Somewhere Street, Someplace City, CA
        15          4 nowhere
nowhere                        500 Oracle Pkwy
nowhere                          500 Oracle Pkwy, Redwood City, CA 94065
37° 31' N / 122° 15' W
4 rows selected.

Using Oracle Text in Oracle XML DB .

Hi all ,
The idea is simple ,i need to index all stored files in Oracle XML DB and the index should stay in Oracle DB . Using some 3 party index software is also possible but you need to write a mapping to move the index file in Oracle DB .
So i thought of using Oracle Text but i am not sure about how to retrieve such a document from Oracle XML DB , let me say over ftp or http ? . And if these documents are password protected -> how can Oracle Text allow this ?

[11gR2 XMLDB Developers Guide -- Full-Text Search over XML Data|http://download.oracle.com/docs/cd/E11882_01/appdev.112/e10492/xdb09sea.htm#i1006756] would be the first place to start.
For document display, there a bunch of potential solutions, you can look at [XML DB Repository|http://download.oracle.com/docs/cd/E11882_01/appdev.112/e10492/xdb03usg.htm#insertedID18], or the Text Application Developers Guide [Presenting Documents in Oracle Text|http://download.oracle.com/docs/cd/B28359_01/text.111/b28303/view.htm#i1006687] .
Password protected documents can't be indexed using the auto_filter.

Oracle Text: How to add/get stopwords list when using Oracle Text world lexer?

I have a use case that we currently use Oracle Text World Lexer to index and search multilingual documents. As we know that World Lexer does the language auto detection. I would like to know the following questions:
Is there anyway I can get the current document's language that Oracle Text detected?
Is there anyway to get the language's stopwords list?
Any thoughts and points will be appreciated.
- Charles

1. If you're using 12c, you can use ctx_doc.policy_languages. (https://docs.oracle.com/database/121/CCREF/cdocpkg011.htm#CCREF24102)
2. If you want multiple stoplists based on each document's language, you have to use the multi-lexer. For world_lexer, there is one stoplist; since the stoplists are somewhat dynamic (you can add but not remove them), the most accurate way to fetch the list is using ctx_report.describe_index or ctx_report.create_index_script and parse the report.

Using oracle text

I have some problem when trying a query text application using Oracle Text, as fallow.
My database is 8.1.7, I have user 'DEMO' having DBA privilege and granted roles: RESOURCE, CONNECT, CTXAPP already.
I connect with DEMO and create a table 'QUICK' as instructed:
create table quick
quick_id number
constraint quick_pk primary key,
text varchar(80)
Now, I create the index:
create index quick_text on quick ( text )
indextype is ctxsys.context;
But I receive the following errors and messages:
ERROR at line 1:
ORA-29855: error occurred in the execution of ODCIINDEXCREATE routine
ORA-20000: interMedia Text error:
DRG-50100: CORE LSF error: 4294967280
ORA-06512: at "CTXSYS.DRUE", line 126
ORA-06512: at "CTXSYS.TEXTINDEXMETHODS", line 78
ORA-06512: at line 1
Please tell me why and what I have to do now.
Thanks.
VuToi

Looks like a bad install to me. If this is purely a test database,
I'd suggest reinstalling the whole thing from scratch. If it's not,
then you need to contact Oracle Support to get this resolved.

Using oracle text on a non-materialized view

I'm having trouble tracking down an error when using oracle text on a non-materialized view (indexes are on the referenced columns). My database has a users table and a user history table which saves the old values when a user profile changes. My view performs a "union all" so I can select from both at once.
I would like to use oracle text to perform a "contains" on the view whenever someone signs up to see if any current users or historical entries contain the desired username.
The following works fine:
contains(user_history_view, 'bill')but when I reference anything in the contains clause, i get a "column is not indexed" error:
contains(user_history_view, signup.user_name) --signup.username is 'bill'Here is a stripped-down demonstration (I am using version 10.2.0.4.0)
create table signup (
signup_id   number(19,0) not null,
signup_name varchar2(255),
primary key (signup_id)
create table users (
user_id   number(19,0) not null,
user_name varchar2(255),
primary key (user_id)
create table user_history (
history_id number(19,0) not null,
user_id    number(19,0) not null,
user_name varchar2(255),
primary key (history_id),
foreign key (user_id) references users on delete set null
create index user_name_index on users(user_name)
indextype is ctxsys.context parameters ('sync (on commit)');
create index user_hist_name_index on user_history(user_name)
indextype is ctxsys.context parameters ('sync (on commit)');
create index signup_name_index on signup(signup_name)
indextype is ctxsys.context parameters ('sync (on commit)');
create or replace force view user_history_view
(user_id, user_name, flag_history) as
select user_id, user_name, 'N' from users
union all
select user_id, user_name, 'Y' from user_history;
--user bill changed his name to bob, and there is a pending signup for another bill
insert into users(user_id, user_name) values (1, 'bob');
insert into user_history(history_id, user_id, user_name) values (1, 1, 'bill');
insert into signup(signup_id, signup_name) values(1, 'bill');
commit;
--works
select * from user_history_view users, signup new_user
where new_user.signup_id = 1
and contains(users.user_name, 'bill')>0;
--fails
select * from user_history_view users, signup new_user
where new_user.signup_id = 1
and contains(users.user_name, new_user.signup_name)>0;I could move everything into a materialized view, but querying against real-time data like this would be ideal. Any help would be greatly appreciated.

Hi,
this is to my knowledge not possible. It is hard for Oracle to do, think about a table with many rows, every row with that column must be checked. So I think only a single varchar2 is possible. Maybe for you will a function work. It is possible to give a function as second parameter.
function return_signup
return varchar2
is
l_signup_name signup.signup_name%type;
begin
select signup_name
into l_signup_name
from signup
where signup_id = 1
and rownum = 1
return l_signup_name;
exception
when no_data_found
then
    l_signup_name := 'abracadabra'; -- hope does not exist
    return l_signup_name;
end;Now you can use above function in the contains.
select * from user_history_view users --, signup new_user
--where new_user.signup_id = 1
where contains(users.user_name, return_signup)>0;I didn't test the code! Maybe you have to adjust the function for your needs. But it is a idea how this can be done.
Otherwise you must make the check by normaly check the columns by simple using a join:
select * from user_history_view users, signup new_user
where new_user.signup_id = 1
and users.user_name = new_user.signup_name;Herald ten Dam
htendam.wordpress.com

Using Oracle Text to Data Mine

Can someone provide me with an idea of how to Data Mine with just using Oracle Text and not the data mining option. I need to search a column of customer complaints and then put it in a category based on that. It would be best if the categories were auto generated. It has to be done in PL/SQL.
Thanks,

You cannot have the categories created automatically without data mining. However, if you are willing to create the categories and queries that determine them, then you can do it with just Oracle Text. I posted an example on the 2nd page of the following thread:
Re: New to Oracle Text search

Number Search using Oracle Text

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