DBMS_LOB.WRITEAPPEND Max buffer size exceeded

Question

Hello,
I'm following this guide to create an index using Oracle Text:
http://download.oracle.com/docs/cd/B19306_01/text.102/b14218/cdatadic.htm#i1006810
So I wrote something like this:
CREATE OR REPLACE PROCEDURE CREATE_INDEX(rid IN ROWID, tlob IN OUT NOCOPY CLOB)
IS
BEGIN
     DBMS_LOB.CREATETEMPORARY(tlob, TRUE);
     FOR c1 IN (SELECT ID_DOCUMENT FROM DOCUMENT WHERE rowid = rid)
     LOOP
          DBMS_LOB.WRITEAPPEND(tlob, LENGTH('<DOCUMENT>'), '<DOCUMENT>');
          DBMS_LOB.WRITEAPPEND(tlob, LENGTH('<DOCUMENT_TITLE>'), '<DOCUMENT_TITLE>');
          DBMS_LOB.WRITEAPPEND(tlob, LENGTH(NVL(c1.TITLE, ' ')), NVL(c1.TITLE, ' '));
          DBMS_LOB.WRITEAPPEND(tlob, LENGTH('</DOCUMENT_TITLE>'), '</DOCUMENT_TITLE>');
          DBMS_LOB.WRITEAPPEND(tlob, LENGTH('</DOCUMENT>'), '</DOCUMENT>');
          FOR c2 IN (SELECT TITRE,TEXTE FROM PAGE WHERE ID_DOCUMENT = c1.ID_DOCUMENT)
          LOOP
               DBMS_LOB.WRITEAPPEND(tlob, LENGTH('<PAGE>'), '<PAGE>');
               DBMS_LOB.WRITEAPPEND(tlob, LENGTH('<PAGE_TEXT>'), '<PAGE_TEXT>');
               DBMS_LOB.WRITEAPPEND(tlob, LENGTH(NVL(c2.TEXTE, ' ')), NVL(c2.TEXTE, ' '));
               DBMS_LOB.WRITEAPPEND(tlob, LENGTH('</PAGE_TEXT>'), '</PAGE_TEXT>');
               DBMS_LOB.WRITEAPPEND(tlob, LENGTH('</PAGE>'), '</PAGE>');
          END LOOP;
     END LOOP;
END;
Issue is that some page text are bigger than 32767 bytes ! So I've got an INVALID_ARGVAL...
I can't figure out how can I increase this buffer size and how to manage this issue ??
Can you please help me :)
Thank you,
Ben
Edited by: user10900283 on 9 févr. 2009 00:05

Answer 1

Hi ben,
I'm afraid, that doesn't help much, since you have obviously rewritten your procedure based on the advise given here.
Coluld you please post your new procedure, as formatted SQL*Plus, embedded in {noformat}{noformat} tags, like this:SQL> CREATE OR REPLACE PROCEDURE create_index(rid IN ROWID,
2 IS
3 BEGIN
4 dbms_lob.createtemporary(tlob, TRUE);
5
6 FOR c1 IN (SELECT id_document
7 FROM document
8 WHERE ROWID = rid)
9 LOOP
10 dbms_lob.writeappend(tlob, LENGTH('<DOCUMENT>'), '<DOCUMENT>');
11 dbms_lob.writeappend(tlob, LENGTH('<DOCUMENT_TITLE>')
12 ,'<DOCUMENT_TITLE>');
13 dbms_lob.writeappend(tlob, LENGTH(nvl(c1.title, ' '))
14 ,nvl(c1.title, ' '));
15 dbms_lob.writeappend(tlob
16 ,LENGTH('</DOCUMENT_TITLE>')
17 ,'</DOCUMENT_TITLE>');
18 dbms_lob.writeappend(tlob, LENGTH('</DOCUMENT>'), '</DOCUMENT>');
19
20 FOR c2 IN (SELECT titre, texte
21 FROM page
22 WHERE id_document = c1.id_document)
23 LOOP
24 dbms_lob.writeappend(tlob, LENGTH('<PAGE>'), '<PAGE>');
25 dbms_lob.writeappend(tlob, LENGTH('<PAGE_TEXT>'), '<PAGE_TEXT>');
26 dbms_lob.writeappend(tlob
27 ,LENGTH(nvl(c2.texte, ' '))
28 ,nvl(c2.texte, ' '));
29 dbms_lob.writeappend(tlob, LENGTH('</PAGE_TEXT>'), '</PAGE_TEXT>')
30 dbms_lob.writeappend(tlob, LENGTH('</PAGE>'), '</PAGE>');
31 END LOOP;
32 END LOOP;
33 END;
34 /
Advarsel: Procedure er oprettet med kompileringsfejl.
SQL>
SQL> DECLARE
2 rid ROWID;
3 tlob CLOB;
4 BEGIN
5 rid := 'AAAy1wAAbAAANwsABZ';
6 tlob := NULL;
7 create_index(rid => rid, tlob => tlob);
8 dbms_output.put_line('TLOB = ' || tlob); -- Not sure, you can do this?
9 END;
10 /
create_index(rid => rid, tlob => tlob);
FEJL i linie 7:
ORA-06550: line 7, column 4:
PLS-00905: object BRUGER.CREATE_INDEX is invalid
ORA-06550: line 7, column 4:
PL/SQL: Statement ignored
SQL>