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Ctx_doc.ifilter problem [message #230018] Tue, 10 April 2007 10:21 Go to next message
losangelo
Messages: 2
Registered: April 2007
Junior Member
Hi!

I've been stuck with this problem for some days, searching the web (Google Is Your Friend by the way) and reading forums but with little avail, I did find this site and with some luck someone will answer me...so I come to you with this problem. I know it must be simple but I have little experience with PL SQL and things tend to become complex...

I have this procedure(based on this example: http://www.oracle.com/technology/products/text/x/samples/Indexing/Datastores/Ifilter/Cr_Concat_Blob.sql ) where I try to convert a BLOB to a CLOB using ctx_doc.Ifilter (and I think it should work) but I get always this cryptic error message: "Error 1: User-Defined Exception" and I can't make sense of it…maybe you can figure it out.

PROCEDURE MAKE_CLOB

   (p_rid in NUMBER,

    p_doc in out NOCOPY clob)

   IS

   v_title        varchar2 (200);

   v_buffer       varchar2 (4000);

   v_text_as_blob blob;

BEGIN

    select NOME, TEXT

    into v_title, v_text_as_blob

    from LB_MULTILANG_DOCS where DOC_ID = p_rid;

    v_buffer := '<mytitle>' || v_title || '</mytitle><mytext>';

    Dbms_Lob.write (p_doc, length(v_buffer ), 1, v_buffer);

    Ctx_Doc.Ifilter (v_text_as_blob, p_doc);

    v_buffer := '</mytext>' ;

    Dbms_Lob.writeappend (p_doc, length(v_buffer ),v_buffer);

    EXCEPTION

    WHEN OTHERS THEN

        dbms_output.put_line (SubStr( 'Error '||TO_CHAR (SQLCODE)|| ': '||SQLERRM , 1, 255));

END ;


I know the problem must be with the ctx_doc.ifilter because without it works fine.
(I also posted this problem in the I-Oracle lists and if I get some feedback I'll say something)

Thanks for your help
Re: Ctx_doc.ifilter problem [message #230120 is a reply to message #230018] Tue, 10 April 2007 23:25 Go to previous messageGo to next message
Barbara Boehmer
Messages: 8633
Registered: November 2002
Location: California, USA
Senior Member
It might help if you provided additional information, like your Oracle version, table structure, sample data, how you are executing the procedure, and whether it is all from the same schema or what privileges are granted. It would be best if you could provide a copy and paste of an actual run that produces the error. You will get more meaningful information if you comment out the exception section. What you posted, by itself, works, as demonstrated below.

SCOTT@10gXE> SELECT banner FROM v$version
  2  /

BANNER
----------------------------------------------------------------
Oracle Database 10g Express Edition Release 10.2.0.1.0 - Product
PL/SQL Release 10.2.0.1.0 - Production
CORE	10.2.0.1.0	Production
TNS for 32-bit Windows: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - Production

SCOTT@10gXE> CREATE TABLE lb_multilang_docs
  2    (doc_id	NUMBER,
  3  	nome	VARCHAR2 (200),
  4  	text	BLOB)
  5  /

Table created.

SCOTT@10gXE> INSERT INTO lb_multilang_docs
  2  VALUES (1, 'nome1', UTL_RAW.CAST_TO_RAW ('this is a test'))
  3  /

1 row created.

SCOTT@10gXE> CREATE OR REPLACE PROCEDURE make_clob
  2  	 (p_rid in NUMBER,
  3  	  p_doc in out NOCOPY clob)
  4  IS
  5  	 v_title	varchar2 (200);
  6  	 v_buffer	varchar2 (4000);
  7  	 v_text_as_blob blob;
  8  BEGIN
  9  	 select NOME, TEXT
 10  	 into v_title, v_text_as_blob
 11  	 from LB_MULTILANG_DOCS where DOC_ID = p_rid;
 12  	 v_buffer := '<mytitle>' || v_title || '</mytitle><mytext>';
 13  	 Dbms_Lob.write (p_doc, length(v_buffer ), 1, v_buffer);
 14  	 Ctx_Doc.Ifilter (v_text_as_blob, p_doc);
 15  	 v_buffer := '</mytext>' ;
 16  	 Dbms_Lob.writeappend (p_doc, length(v_buffer ),v_buffer);
 17  EXCEPTION
 18  	 WHEN OTHERS THEN
 19  	     dbms_output.put_line (SubStr( 'Error '||TO_CHAR (SQLCODE)|| ': '||SQLERRM , 1, 255));
 20  END make_clob;
 21  /

Procedure created.

SCOTT@10gXE> SHOW ERRORS
No errors.
SCOTT@10gXE> GRANT EXECUTE ON make_clob TO PUBLIC
  2  /

Grant succeeded.

SCOTT@10gXE> DECLARE
  2    v_clob  CLOB;
  3  BEGIN
  4    DBMS_LOB.CREATETEMPORARY (v_clob, TRUE, DBMS_LOB.SESSION);
  5    make_clob (1, v_clob);
  6    DBMS_OUTPUT.PUT_LINE (SUBSTR (v_clob, 1, 60));
  7    DBMS_LOB.FREETEMPORARY (v_clob);
  8  END;
  9  /
<mytitle>nome1</mytitle><mytext>this is a test</mytext>

PL/SQL procedure successfully completed.

SCOTT@10gXE> 

Re: Ctx_doc.ifilter problem [message #230645 is a reply to message #230120] Thu, 12 April 2007 08:04 Go to previous message
losangelo
Messages: 2
Registered: April 2007
Junior Member
Hi again!

First of all, thank you. I saw several times your replies in many forums when searching the web, making your name somewhat “familiar” to me and (pleasantly) surprised to see you replied mine.
I'll see all the points you mentioned to see if I missed something (maybe I did...) and then I’ll give some feedback.


Thank you again


Luís Ângelo
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