Please help on uploading a CSV file on APEX through file browse

Question

Hi All,
I need to upload a csv file in the table through file browse button.For that i have created the below process and function.This method is working perfectly fine when the file size is small.But i need to upload the file of 16 MB size and when i try to upload that file it gives error wwv_flow.accept error.Any expert of APEX please help me out on this error.As i am very new to APEX and i need to get this done as early as possible.Please provide any solution ,i will be really grateful to the person.
function_
create or replace function hex_to_decimal
--this function is based on one by Connor McDonald
--http://www.jlcomp.demon.co.uk/faq/base_convert.html
( p_hex_str in varchar2 ) return number
is
v_dec number;
v_hex varchar2(16) := '0123456789ABCDEF';
begin
v_dec := 0;
for indx in 1 .. length(p_hex_str)
loop
v_dec := v_dec * 16 + instr(v_hex,upper(substr(p_hex_str,indx,1)))-1;
end loop;
return v_dec;
end hex_to_decimal;
Process_
     DECLARE
     v_blob_data BLOB;
     v_blob_len NUMBER;
     v_position NUMBER;
v_clob_data CLOB := 'anything';
dest_offset NUMBER := 1;
src_offset NUMBER := 1;
blob_csid NUMBER := dbms_lob.default_csid;
lang_ctx INTEGER := dbms_lob.default_lang_ctx;
warning INTEGER;
     v_raw_chunk RAW(10000);
     v_char CHAR(1);
     c_chunk_len number := 1;
     v_line VARCHAR2 (32767) := NULL;
     v_data_array wwv_flow_global.vc_arr2;
     v_rows number;
     v_sr_no number := 1;
     BEGIN
     delete from scg_recievables2;
     -- Read data from wwv_flow_files</span>
     select blob_content into v_blob_data
     from wwv_flow_files
     where last_updated = (select max(last_updated) from wwv_flow_files where UPDATED_BY = :APP_USER)
     and id = (select max(id) from wwv_flow_files where updated_by = :APP_USER);
     v_blob_len := dbms_lob.getlength(v_blob_data);
     v_position := 1;
-- Read and convert binary to char</span>
     WHILE ( v_position <= v_blob_len ) LOOP
     dbms_lob.converttoclob(v_clob_data, v_blob_data, v_blob_len, dest_offset,src_offset,blob_csid,lang_ctx,warning);
v_char := dbms_lob.getlength(v_clob_data);
     v_line := v_line || v_char;
     v_position := v_position + c_chunk_len;
     -- When a whole line is retrieved </span>
     IF v_char = CHR(10) THEN
     -- Convert comma to : to use wwv_flow_utilities </span>
     v_line := REPLACE (v_line, ';', ':');
     -- Convert each column separated by : into array of data </span>
     v_data_array := wwv_flow_utilities.string_to_table (v_line);
if IsNumber(substr(v_data_array(9),1,1)) = 1 then
v_data_array(9) := substr(v_data_array(9),1,11);
else
v_data_array(9) := '01-JAN-1900';
end if;
v_data_array(9) := NVL(v_data_array(9),'01-JAN-1900');
     -- Insert data into target table </span>
     EXECUTE IMMEDIATE 'insert into scg_recievables2 (Account_receivable_number, the_account_number, bill_history_tran, service_number, item_type, the_amount_billed, the_remaining_amount,source_of_payment)
     values (:1,:2,:3,:4,:5,:6,:7,:8,:9)'
     USING
     v_data_array(1),
     v_data_array(2),
     v_data_array(3),
     v_data_array(4),
     v_data_array(5),
     v_data_array(6),
     v_data_array(7),
     v_data_array(8);
     -- Clear out
     v_line := NULL;
     v_sr_no := v_sr_no + 1;
     END IF;
     END LOOP;
     END;

Answer 1

As noted, this confuses the issue, since a possible answer was posted in the OTHER thread.. Check your server logs, you are probably timing out.. From prior threads with a similar issue:
Have a look at the httpd.conf file (or get your system administrator to look at it) and see what the value of TimeOut is set to. You may need to increase it in order to export large tables via APEX.
http://www.apacheref.com/ref/http_core/Timeout.html
Thank you,
Tony Miller
Webster, TX
A lady came up to me on the street, pointed at my suede jacket and said "Do you know a cow was murdered to make that jacket?"
"I didn't know there were any witnesses", I replied " Now I'll have to kill you too"