Uploading data to an Oracle Database

Hi there,
We have an Oracle database and an application for data entry, etc. Some of my users do not want to use the data entry forms but would like to send us files either in text/xml to upload into our system. I have previously used text_id to parse text files and load them into a database, but am wondering if there is a better way of doing this either through web services, xml parsing, etc. If you've solved a similar problem using newer technologies, I would greatly appreciate your input.
Thanks.
Azeem.

Hi Michel,
Thank you so much for replying to my query. I have used SQL Loader in the past but since this is going to be an ongoing data transfer (load), I wanted to experiment with something new such as web services or XML. I think my users use XML and have expressed an interest in sending me XML files, that I would like to automatically load into the system. I'm not sure if I should provide them a forms interface to read their files, parse the data, and then upload it, and give them a bad file, or if I should look at something else.
Thanks.
Azeem.

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PROCEDURE pro_carga_planilla_prosp( p_archivo VARCHAR2) IS
v_blob_data BLOB;
v_blob_len NUMBER;
v_position NUMBER;
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;
v_ok boolean := true;
v_local_ok BOOLEAN := TRUE;
v_reg_ok NUMBER := 0;
v_reg_ko NUMBER := 0;
v_localidad_id NUMBER;
v_departamento_id NUMBER;
v_cargo_id NUMBER;
v_prospecto_id NUMBER;
v_asesor_id NUMBER;
V_REG prospectos%rowtype;
BEGIN
-- Read data from wwv_flow_files
select blob_content into v_blob_data
from wwv_flow_files
where name= p_archivo;
v_blob_len := dbms_lob.getlength(v_blob_data);
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v_char := chr(hex_to_decimal(rawtohex(v_raw_chunk)));
v_line := v_line || v_char;
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v_position := v_position + c_chunk_len;
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v_line := replace(REPLACE (v_line, ',', ':'), ';',':');
v_line := replace(replace(v_line, chr(10)),chr(13));
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V_REG.RAZON_SOCIAL:=v_data_array(3);
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V_REG.TELEFONO:=v_data_array(9);
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-- pro_log(v_data_array(1));
-- pro_log(v_data_array(2));
V_REG.CANTIDAD_EMPLEADOS:=RTRIM(LTRIM(v_data_array(13)));
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v_data_array(21):=null;
end if;
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-- PRO_LOG('PROSP 1.2 '||v_sr_no);
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departamento_id, telefono, telefono2, rubro,ruc,cantidad_empleados,
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v_data_array(4)||' '||v_data_array(5),
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returning prospecto_id INTO v_prospecto_id;
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v_cargo_id := pack_empresas.get_cargo(v_data_array(17));
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-- PRO_LOG('PROSP 5');
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v_line := NULL;
v_sr_no := v_sr_no + 1;
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END LOOP;
delete wwv_flow_files
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END pro_carga_planilla_prosp;
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)
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