10g exporting to CSV using client_text_io is not working correctly.

Question

I have an odd issue which i could do with some help with. I run an function that exports to CSV based on an pre defined record group.
This has been working fine for many months with various customers. Recently a new customer used it and they have 28k rows in his record group and the export is actually not exporting correctly.
The record group has a record count of 28331.
The CSV produced has only 3756 in my CSV file. These are the last 3756 records in the Record group so its as if its overwriting the data as it goes yet all smaller datasets work
FUNCTION fun_export_csv (vgraphid NUMBER, p_filename VARCHAR2)RETURN BOOLEAN IS
  out_file                      client_text_io.file_type; 
     i                                             NUMBER;
  lv_line              VARCHAR2(5000);
BEGIN
rg:=populate_group('RG11_EXP');               
synchronize;
lv_line:= ('"GIN","Gin Date","PO Num","PO Required Date","Mat Num","Mat Description","Supplier Part No","On Time Delivery(Yes-1, No-0)"');
client_text_io.put(out_file, lv_line);
client_text_io.new_line(out_file,1); 
For i in 1..get_group_row_count('RG11_EXP') Loop--this count is 28331
lv_line:= ('"'||get_group_number_cell('RG11_EXP.col1', i )                 ||'"'|| ',' ||'"'||
     get_group_date_cell('RG11_EXP.grn_date', i )                 ||'"'|| ',' ||'"'||                                          
     get_group_number_cell('RG11_EXP.po', i )       ||'"'|| ',' ||'"'||
     get_group_date_cell('RG11_EXP.daterqd', i ) ||'"'|| ',' ||'"'||
     get_group_char_cell('RG11_EXP.item_no', i ) ||'"'|| ',' ||'"'||
     get_group_char_cell('RG11_EXP.desc', i )                    ||'"'|| ',' ||'"'||
     get_group_char_cell('RG11_EXP.part_no', i )               ||'"'|| ',' ||'"'||
     get_group_number_cell('RG11_EXP.ontime', i )                    ||'"');
client_text_io.put(out_file, lv_line);
client_text_io.new_line(out_file,1); 
END LOOP;     
client_text_io.FCLOSE(out_file);
RETURN TRUE;          

Answer 1

Hello,
Try to insert a "synchronize" instruction from time to time:
i  pls_integer := 1;
Loop
  If mod(i, 500) = 0 Then
     synchronize;
  End if ;
  i := i + 1 ;
End loop;
...<p>But keep in mind the the CLIENT_TEXT_IO generate a lot of network traffic, so it is better and faster to generate the file on the A.S., then after transfer it to the client machine.</p>
Francois