Oracle Text Parser/Filter

Hi everyone,
I'm currently working with oracle text, everything is working fine but now I have to extend some features so the problem is this:
- Oracle provides some parsers for common file types such as .doc, .docx, .pdf, .html, etc.. but now I must create a custom parser - its use will possibly be parsing custom file types or encrypted files.
Anyone knows some documentation that can help me create my custom parser and get it to work properly?
Any help would be apreciated.
Regards,

- In what language an format (.exe, .pl, .class, etc..) should my custom parser be developed?Any executable file.
- Where should it be in the database directory tree?Whatever directory you have your sql files stored in. The default is your bin sub-directory of your oracle home directory path, except on Windows it must be in the ctx/bin sub-directory of the oracle home directory path.
- How can I tell that my custom parser is only to be used when the document extension meets certain critiria? (I want to mix doc, docx and my custom extension so the parsers provided by oracle should be available and working too)Use a format column.
- Where shall I insert the tokens and with what info?If you create a user_filter preference, then set your executable file as the command attribute to that preference, then use that preference when creating your index, the tokens are automatically inserted in the dr$your_index_name$i domain index table.
You may not have scrolled down far enough in the documentation to see all of the information and complete example provided.

Similar Messages

Oracle Text valid file formats

We are using Oracle Text 10g release 1. In the Oracle Text documentation in appendix B it lists all the supported file formats Oracle text can filter and turn to text. Does anyone know whether there is a document that not only has the supported file formats but also the file extensions of these file types?

Hi,
It depends on your release of 10gR1 as to the filter you'll use. At 10.1.0.4 the Verity KeyView filter is used. Prior to that (in 10gR1) the INSO filter was used. This determines the file formats that are supported.
Depending on your release, you can 'Google' for either INSO filter or Verity KeyView filter and get more details on the filters.
Thanks,
Ron

Oracle.xml.parser.v2.XMLParseException: Invalid char in text. in BPEL

Hi,
Non Recoverable Business Fault :
<bpelFault><faultType>1</faultType><operationErroredFault xmlns="http://xmlns.oracle.com/bpel/workflow/taskService"><part name="payload"><operationErroredFault xmlns="http://xmlns.oracle.com/bpel/workflow/taskService"><faultInfo>oracle.xml.parser.v2.XMLParseException: Invalid char in text.</faultInfo></operationErroredFault></part></operationErroredFault></bpelFault>
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Assuming this is SOA Suite 11g. Did you start the WLS with UTF8? Is your database using UTF8?
Nothing else is supported.
If you are on unix.
$ export LANG="en_US.utf8"
$ export LC_ALL="en_US.utf8"
Then locale should display something like this
$ locale
LANG=en_US.utf8
LC_CTYPE="en_US.utf8"
LC_COLLATE="en_US.utf8"
LC_MONETARY="en_US.utf8"
LC_NUMERIC="en_US.utf8"
LC_TIME="en_US.utf8"
LC_MESSAGES="en_US.utf8"
LC_ALL=en_US.utf8
And then you should be able to start the SOA Suite correctly.

Parsing the word file using oracle text having tables within it............

Hi,
I was going through this document.Actually I am going to implement something like full text search functionality in our system.
We get the info as .doc file.
Earlier what we used to do is, we used to parse the file and store it into the database and then searched using PL/SQL.
But what I understand from this article that this can be done using oracle text also.
One concern is that whether the oracle text is able to parse the .doc file having tables embedded within it.
Please let me know about this.(Whether oracle text will be able to parse the files having tables embedded within it).
I am attaching an example file for this.
Please let me know about this as early as possible.

Yes Oracle Text have this capability. Use AUTO_FILTER or USER_FILTER to create index

Is Oracle Text the right solution for this need of a specific search!

Hi ,
We are on Oracle 11.2.0.2 on Solaris 10. We have the need to be able to do search on data that are having diacritical marks and we should be able to do the serach ignoring this diacritical marks. That is the requirement. Now I got to hear that Oracle Text has a preference called BASIC_LEXER which can bypass the diacritical marks and so solely due to this feature I implemented Oracle Text and just for this diacritical search and no other need.
I mean I set up preference like this:
ctxsys.ctx_ddl.create_preference ('cust_lexer', 'BASIC_LEXER');
ctxsys.ctx_ddl.set_attribute ('cust_lexer', 'base_letter', 'YES'); -- removes diacritics
With this I set up like this:
CREATE TABLE TEXT_TEST
NAME VARCHAR2(255 BYTE)
--created Oracle Text index
CREATE INDEX TEXT_TEST_IDX1 ON TEXT_TEST
(NAME)
INDEXTYPE IS CTXSYS.CONTEXT
PARAMETERS('LEXER cust_lexer WORDLIST cust_wl SYNC (ON COMMIT)');
--sample data to illustrate the problem
Insert into TEXT_TEST
   (NAME)
Values
   ('muller');
Insert into TEXT_TEST
   (NAME)
Values
   ('müller');
Insert into TEXT_TEST
   (NAME)
Values
   ('MULLER');
Insert into TEXT_TEST
   (NAME)
Values
   ('MÜLLER');
Insert into TEXT_TEST
   (NAME)
Values
   ('PAUL HERNANDEZ');
Insert into TEXT_TEST
   (NAME)
Values
   ('CHRISTOPHER Phil');
COMMIT;
--Now there is an alternative solution that is there, instead of thee Oracle Text which is just a plain function given below (and it seems to work neat for my simple need of removing diacritical characters effect in search)
--I need to evaluate which is better given my specific needs -the function below or Oracle Text.
CREATE OR REPLACE FUNCTION remove_dia(p_value IN VARCHAR2, p_doUpper IN VARCHAR2 := 'Y')
RETURN VARCHAR2 DETERMINISTIC
IS
OUTPUT_STR VARCHAR2(4000);
begin
IF (p_doUpper = 'Y') THEN
   OUTPUT_STR := UPPER(p_value);
ELSE
   OUTPUT_STR := p_value;
END IF;
OUTPUT_STR := TRANSLATE(OUTPUT_STR,'ÀÁÂÃÄÅÇÈÉÊËÌÍÎÏÑÒÓÔÕÖØÙÚÛÜÝàáâãäåçèéêëìíîïñòóôõöøùúûüýÿ', 'AAAAAACEEEEIIIINOOOOOOUUUUYaaaaaaceeeeiiiinoooooouuuuyy');
RETURN (OUTPUT_STR);
end;
--now I query for which name stats with a P%:
--Below query gets me unexpected result of one row as I am using Oracle Text where each word is parsed for search using CONTAINS...
SQL> select * from text_test where contains(name,'P%')>0;
NAME
PAUL HERNANDEZ
CHRISTOPHER Phil
--Below query gets me the right and expected result of one row...
SQL> select * from text_test where name like 'P%';
NAME
PAUL HERNANDEZ
--Below query gets me the right and expected result of one row...
SQL> select * from text_test where remove_dia(name) like remove_dia('P%');
NAME
PAUL HERNANDEZMy entire need was only to be able to do a search that bypasses diacritical characters. To implement Oracle Text for that reason, I am wondering if that was the right choice! More so when I am now finding that the functionality of LIKE is not available in Oracle Text - the Oracle text search are based on tokens or words and they are different from output of the LIKE operator. So may be should I have just used a simple function like below and used that for my purpose instead of using Oracle Text:
This function (remove_dia) just removes the diacritical characters and may be for my need this is all that is needed. Can someone help to review that given my need I am better of not using Oracle Text? I need to continue using the functionality of Like operator and also need to bypass diacritical characters so the simple function that I have meets my need whereas Oracle Text causes a change in behaviour of search queries.
Thanks,
OrauserN

If all you need is LIKE functionality and you do not need any of the complex search capabilities of Oracle Text, then I would not use Oracle Text. I would create a function-based index on your name column that uses your function that removes the diacritical marks, so that your searches will be faster. Please see the demonstration below.
SCOTT@orcl_11gR2> CREATE TABLE TEXT_TEST
2    (NAME VARCHAR2(255 BYTE))
3 /
Table created.
SCOTT@orcl_11gR2> Insert all
2 into TEXT_TEST (NAME) Values ('muller')
3 into TEXT_TEST (NAME) Values ('müller')
4 into TEXT_TEST (NAME) Values ('MULLER')
5 into TEXT_TEST (NAME) Values ('MÜLLER')
6 into TEXT_TEST (NAME) Values ('PAUL HERNANDEZ')
7 into TEXT_TEST (NAME) Values ('CHRISTOPHER Phil')
8 select * from dual
9 /
6 rows created.
SCOTT@orcl_11gR2> CREATE OR REPLACE FUNCTION remove_dia
2    (p_value   IN VARCHAR2,
3      p_doUpper IN VARCHAR2 := 'Y')
4    RETURN VARCHAR2 DETERMINISTIC
5 IS
6    OUTPUT_STR VARCHAR2(4000);
7 begin
8    IF (p_doUpper = 'Y') THEN
9       OUTPUT_STR := UPPER(p_value);
10    ELSE
11       OUTPUT_STR := p_value;
12    END IF;
13    RETURN
14       TRANSLATE
15         (OUTPUT_STR,
16          'ÀÁÂÃÄÅÇÈÉÊËÌÍÎÏÑÒÓÔÕÖØÙÚÛÜÝàáâãäåçèéêëìíîïñòóôõöøùúûüýÿ',
17          'AAAAAACEEEEIIIINOOOOOOUUUUYaaaaaaceeeeiiiinoooooouuuuyy');
18 end;
19 /
Function created.
SCOTT@orcl_11gR2> show errors
No errors.
SCOTT@orcl_11gR2> CREATE INDEX text_test_remove_dia_name
2 ON text_test (remove_dia (name))
3 /
Index created.
SCOTT@orcl_11gR2> set autotrace on explain
SCOTT@orcl_11gR2> select * from text_test
2 where remove_dia (name) like remove_dia ('mü%')
3 /
NAME
muller
müller
MULLER
MÜLLER
4 rows selected.
Execution Plan
Plan hash value: 3139591283
| Id | Operation                   | Name                      | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT            |                           |     1 | 2131 |     2   (0)| 00:00:01 |
|   1 | TABLE ACCESS BY INDEX ROWID| TEXT_TEST                 |     1 | 2131 |     2   (0)| 00:00:01 |
|* 2 |   INDEX RANGE SCAN          | TEXT_TEST_REMOVE_DIA_NAME |     1 |       |     1   (0)| 00:00:01 |
Predicate Information (identified by operation id):
   2 - access("SCOTT"."REMOVE_DIA"("NAME") LIKE "REMOVE_DIA"('mü%'))
       filter("SCOTT"."REMOVE_DIA"("NAME") LIKE "REMOVE_DIA"('mü%'))
Note
   - dynamic sampling used for this statement (level=2)
SCOTT@orcl_11gR2> select * from text_test
2 where remove_dia (name) like remove_dia ('P%')
3 /
NAME
PAUL HERNANDEZ
1 row selected.
Execution Plan
Plan hash value: 3139591283
| Id | Operation                   | Name                      | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT            |                           |     1 | 2131 |     2   (0)| 00:00:01 |
|   1 | TABLE ACCESS BY INDEX ROWID| TEXT_TEST                 |     1 | 2131 |     2   (0)| 00:00:01 |
|* 2 |   INDEX RANGE SCAN          | TEXT_TEST_REMOVE_DIA_NAME |     1 |       |     1   (0)| 00:00:01 |
Predicate Information (identified by operation id):
   2 - access("SCOTT"."REMOVE_DIA"("NAME") LIKE "REMOVE_DIA"('P%'))
       filter("SCOTT"."REMOVE_DIA"("NAME") LIKE "REMOVE_DIA"('P%'))
Note
   - dynamic sampling used for this statement (level=2)
SCOTT@orcl_11gR2>

Error while accessing OIM UI - OracleJSP error: oracle.jsp.parse.JspParseException

We have 3 nodes of OIM servers in our clustered production environment. While accessing OIM server on first node, following error is coming in the browser window -
OracleJSP error: oracle.jsp.parse.JspParseException:
/oracle/iam/ui/main/signin.jspx: Line # 5, &amp;amp;lt;af:document id="d1" initialFocusId="pt1:_pt_it1" theme="light" title="#{uiBundle['IDENTITY_SELF_SERVICE_TITLE']}"&amp;amp;gt;
Error: Encountered deferred syntax #{ in template text. If intended as a literal, escape it or set directive deferredSyntaxAllowedAsLiteral
The OIM UI is accessible on the other 2 nodes. There are no changes made in the environment. I have also attached the OIM diagnostic logs for your analysis.
Please let us know the steps to resolve this issue in production environment.

No..
I have followed the way to add JSF libray,
1)Right click the projet->project properties->javadoc->JSP taglibraries
2)Inside the Distributed Library i have selected the JSTL core 1.2 and click on add.
3) Then a new dialogue box of Choose tablibraries came.inside that only struts bean,struts Html etc are seeing.
What i need to select?..Do i am following the right way?
Please help..

Oracle.xdo.parser.v2.XMLParseException: Bad character (1e)

Hi,
I am using BI Publisher shipped with Oracle EBS R12 (I think it is BIP 5.6.3).
I have made a specific XSL-TEXT layout file to generate some output files in a proprietary format (for label printing). Everything is working like a charm so far.
However now I want to put ASCII control characters into my output file, e.g. char 30 / RS / Record Separator (https://en.wikipedia.org/wiki/C0_and_C1_control_codes). I know that XML is not really made for some of those control characters, but well...
I have something like this in my XSLT layout file:
<xsl:output method="text" media-type="text/plain" indent="no" encoding="iso-8859-1" />
<xsl:text>& #30;</xsl:text>
...When I run it in BIP I get following error message in the OPP logfile:
oracle.xdo.parser.v2.XMLParseException: Bad character (1e).
I found Metalink note 745451.1 stating that patch 7687414 should fix the problem. We have this patch installed (comes with R12.1.3) but the issue is still there.
Does anyone have ideas or experience with this? I know that I should not use non-supported characters in XML, but that would mean that BIP has no purpose anymore for this case and I have to find another solution from someone else or develop my own program.
Thanks in advance,
David.
Edited by: David Weber on Aug 24, 2012 2:12 PM

Does anyone have an idea? Anyone experience with generating binary data via BIP maybe?
regards,
David.

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 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.

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

Oracle text in 11g enterprise

I built a text on the sql oracle 11g version as follows:
SELECT ROWIDS, ID, NGAYTAO, NGAYXUATBAN, CHUYENMUC, fullpath, NGONNGU, content on
, (SELECT CTX_DOC.SNIPPET ('SEARCH_DNICT_MOTA_IDX', ROWIDS, "Vietnam has a chance to catch large capital inflows from Japan ') FROM DUAL) ABC
, (SELECT CTX_DOC.SNIPPET ('SEARCH_DNICT_NOIDUNG_IDX', ROWIDS, "Vietnam has a chance to catch large capital inflows from Japan ') FROM DUAL) CD
FROM SEARCH_DNICT
WHERE (CONTAINS (SEARCH_DNICT.TIEUDE, "Vietnam has a chance to catch large capital inflows from Japan ', 1)> 0
OR CONTAINS (SEARCH_DNICT.MOTA, "Vietnam has a chance to catch large capital inflows from Japan ', 2)> 0
OR CONTAINS (SEARCH_DNICT.NOIDUNG, "Vietnam has a chance to catch large capital inflows from Japan ', 3)> 0);
When I execute the code after the error occurs:
ORA-20000: Oracle Text error:
DRG-11207: user filter command with status 2
DRG-11225: Third-party filter timed out.
ORA-06512: at "CTXSYS.DRUE", line 160
ORA-06512: at "CTXSYS.CTX_DOC", line 2618
ORA-06512: at line 1
20000. 00000 - "% s"
* Cause: The stored procedure 'RAISE_APPLICATION_ERROR'
Causes this error was to be generated.
* Action: Correct the problem as described in the error message or contact
the application administrator or DBA for more information.
- Please help me solve the above problem, thanks
Edited by: 890028 on Oct 7, 2011 12:51 AM
Edited by: 890028 on Oct 7, 2011 12:52 AM

Can you provide a full script that shows us what you're trying to do? The select statement doesn't tell us enough to help you debug.

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;

Oracle Text and APEX

Hello
Tried the Oracle White Paper - Oracle Text Web Applications
Created the table and populated with relevant url links
create table htmldb_documentation(
id number,
doc_title varchar2(4000),
doc_url varchar2(4000))
then created the index
create index htmldb_doc_ctxidx on htmldb_documentation(doc_url)
indextype is ctxsys.context
parameters ('datastore CTXSYS.URL_DATASTORE')
Then ran my SQL for the report in Toad and APEX SQL Workshop>SQL Commands before creating an APEX Region based on a SQL Report
select score(1) relevance, doc_title, doc_url
from htmldb_documentation
where CONTAINS (doc_url, :P1_SEARCH, 1) > 0
order by 1 desc
After running the APEX Report I get error
report error:
ORA-29902: error in executing ODCIIndexStart() routine
ORA-20000: Oracle Text error:
DRG-50901: text query parser syntax error on line 1, column 1
I also ran these grant commands after I received this error
grant ctxapp to demo;
grant execute on ctx_cls to demo;
grant execute on ctx_ddl to demo;
grant execute on ctx_doc to demo;
grant execute on ctx_output to demo;
grant execute on ctx_query to demo;
grant execute on ctx_report to demo;
grant execute on ctx_thes to demo;
grant execute on ctx_ulexer to demo;
Any ideas ?? I'm running APEX 3.1.0.00.32 on Oracle 10.2.0.1 on WindowsXP
If I replace the bind variable :P1_SEARCH, with a literal value the error disappears

Couple of things to check:
1) do you have an item called P1_SEARCH in your application?
2) If so, make sure that it has a value; otherwise, Oracle Text gets confused and will throw that error.
You may want to consider using a PL/SQL Function Returning SQL Query that will only append the CONTAINS clause if P1_SEARCH has some value.
Thanks,
- Scott -
http://sumnertechnologies.com
http://spendolini.blogspot.com

XML parsing problems with Oracle XML parser for PL/SQL

I am using the Oracle XML parser for PL/SQL to transform XML into HTML usign XSL. The parser gives me sporadic errors trying to parse various XML documents. For the same XML source, the XMLPARSER will parse without errors one day and the next day will give me errors such as "invalid char in text", "Expected ';'.", or even Java null pointer exceptions.
I have verified that the XML sources are well formed, so I am pretty certain that the problems I am having are bugs in the XMLPARSER.
Is there going to be a XML parser for PL/SQL version 2 that will fix these bugs? If so, when??? If not, is there anything else I could do to fix these problems?
Thanks!

You can use the latest version.

How to use Oracle text

I'm storing files in a blob field in a 9i database, sometimes I need to query using the details stored in the database about the file and sometimes I need to search the files to find matches with some text (like search engine), I was told that oracle text can help me accomplish this functionality , however I don't know if it supports arabic text and I don't know how to use it from my application developed in 9i.
Regards.

Friend by using these step you can easily use Oracle inter text media
j a h a n z e b
[email protected]
Oracle Developer
6th Floor, State Bank of Pakistan
I.I.Chundrigar Road, Karachi.
Please note that in SqlPlus you can use '?' in stead of $ORACLE_HOME, and this works on Unix and Windows so if you want to execute $ORACLE_HOME/rdbms/admin/catalog.sql you can simply use:
on Unix sql> @?/rdbms/admin/catalog.sql
on Windows sql> @?\rdbms\admin\catalog.sql
5.2.1 Explanation of installation steps
1. Connected to database as SYSDBA and create CTXSYS user:
Ctxsys user is created by calling following script:
@?/ctx/admin/dr0csys.sql <ctxsys> <system> <temp>
Where:
change_on_install - is the ctxsys user password
DRSYS - is the default tablespace for ctxsys
TEMP - is the temporary tablespace for ctxsys
This will create user CTXSYS and grants full privileges to CTXSYS in order to create and insert into result tables, execute callbacks, rewrite queries, and perform system cleanup. At this point CTXSYS will not own any objects.ss
2. Connected to database as CTXSYS and create all necessary objects
All necessary object are creates by calling following script:
connect CTXSYS/change_on_install
@?/ctx/admin/dr0inst <replace with $ORACLE_HOME>/ctx/lib/libctxx9.so;
Please not that you have to put full path to your ORACLE_HOME, for example home as paramter
On Solaris/Aix/Linux with $ORACLE_HOME of /u01/app/oracle/product/8.1.7
@?/ctx/admin/dr0inst.sql /u01/app/oracle/product/8.1.7/ctx/lib/libctxx8.so
On HP-UX with $ORACLE_HOME of /u01/app/oracle/product/8.1.7
@?/ctx/admin/dr0inst.sql /u01/app/oracle/product/8.1.7/ctx/lib/libctxx8.sl
Windows NT/2000 with D:\oracle\product\8.1.7
@?/ctx/admin/dr0inst.sql D:\oracle\product\8.1.7\bin\oractxx8.dll
This will installs all Oracle database objects required by the Oracle Text system. This includes:
a) Data dictionary tables, views, sequence, packages
b) Server management tables, views and packages
c) Dispatcher packages
d) Service queue objects
3) Install appropriate language-specific default preferences.
The next step is to install appropriate language-specific default preferences.When you use CREATE INDEX to create an index or ALTER INDEX to manage an index, you can optionally specify indexing preferences in the parameter string. There are seven preference classes:
- Lexer, defines the language being indexed. ( language specific )
- Wordlist, defines the expantion of stem and fuzzy queries. ( language specific )
- Stoplist, defines words and themes that are not be indexed. ( language specific )
- Datastore, defines document storage.
- Filter, defines standards for converion of documents to plaintext.
- Storage, defines the storage of the index tables.
- Section group, enables possibilities to define document sections.
There is script which creates language-specific default preferences for every language Oracle text supports in <ORACLE_HOME>/ctx/admin/defaults directory, such as English(US), Danish(DK), Dutch(NL), Finnish(SF), French(FR), German(DE), Italian(IT), Portuguese(PR), Spanish(ES), and Swedish(S). They are named in the form drdefXX.sql, where XX is the language code. To manually install US default preferences, for example, log into sqlplus as CTXSYS, and run 'drdefus.sql' as described below:
@?/ctx/admin/defaults/drdefus.sql
create user textuser identified by textuser
default tablespace users
temporary tablespace temp;
-- You must grant 'ctxapp' role to textuser
grant connect, resource, ctxapp to textuser;
connect textuser/textuser
drop table quick;
create table quick (
quick_id number
constraint quick_pk primary key,
text varchar2(80) );
insert into quick ( quick_id, text ) values (1,'The cat sat on the mat');
insert into quick ( quick_id, text ) values (2,'The quick brown fox jumps over the lazy dog' );
insert into quick ( quick_id, text ) values (3,'The dog barked like a dog');
commit;
create index quick_text on quick ( text )
indextype is ctxsys.context;
col text format a45
col s format 999
select text, score(42) s from quick
where contains ( text, 'dog', 42 ) > 0
order by s desc;

Oracle Text Parser/Filter

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