Overloading htp procedures

Question

Hi all...
need some help.. I'm generating a pretty complex html report to get formatting using pl/sql to get the html.
My procedure runs fine.. when I wrap it with htp.p I get
ORA-06502: PL/SQL: numeric or value error
I think i am overloading my buffer with my output (my html is being returned in a clob, varchar2 was too small)...
my question is here: is there a better method than htp.p or htp.prn to output large HTML components?
Thanks,
Scott

Answer 1

If I need to do this, I will just loop around the clob and build up the output gradually - its a slighty more involved procedure but it works (although this is off the top of my head so probably requires a bit of debugging!):
declare
   cn_max_buf_len constant number := 32767; /* adjust to suit */
   lc_file clob;
   ln_tot_file_len number;
   ln_buf_len number;
   ln_offset number;
   lv_buff varchar2(32767); /* adjust to suit */
begin
   /* adjust to suit */
   select clob_content into lc_file
     from foo
    where id = 1;
   ln_tot_file_len := Dbms_lob.getlength (lc_file);
   if nvl(ln_tot_file_len,0) != 0 then
      ln_offset := 1;
      if ln_tot_file_len < cn_max_buf_len then
         ln_buf_len := ln_tot_file_len;
      else
         ln_buf_len := cn_max_buf_len;
      end if;
      htp.prn('<div>'); /* adjust to suit */
      loop
         exit when ln_offset >= ln_tot_file_len;
         Dbms_lob.Read (
            lc_file
            ,ln_buf_len
            ,ln_offset
            ,lv_buff
         Htp.prn (lv_buff);
         ln_offset := ln_offset + ln_buf_len;
      end loop;
      htp.p('</div>'); /* adjust to suit */
   end if;
end;Edited by: Joel_C on 23-Mar-2011 14:36