Add data to table view from input fields in a page

Question

Hi
        I am developing a BSP page which will be called from SRM shop transaction. After user enters the line item data, data will be passed back to shop transaction using OCI interface and the page attributes (URL).
   (1) How can I add data from input fields to table view on a page on a button click? I am able to add first line but I could not retain first line data when I try to add the second line.
      I am able to add multiple lines to table view if I use view and controller by adding to the line data to static attribute of the controller. I can’t use the controller and view because I can not set the attribute to Controller automatically.
   (2) Is there a way to pass an attribute (URL) to controller from SPRO? Like we pass an attribute to page automatically (Automatic page attribute).
   (3) How can I call a controller and view and pass the page attribute to the controller on a button click from a page with out controller?
Thanks
Sreenivas

Answer 1

I'm trying to test the merge with the following data in a test.txt file:
ZZZZZ114923000004
1234Z400660000001
ZZZZZ114923000010
Getting an error:
SQL> @C:\dataformats\sql\pc12seriesMerge.sql
Directory created.
SP2-0552: Bind variable "17" not declared.
SQL>
here it the pc12seriesMerge.sql file
set serveroutput on
create or replace directory user_dir as 'c:\dataformats\incoming\';
DECLARE
v_filename VARCHAR2(100); -- Data filename
v_file_exists boolean;
v_file_length number;
v_block_size number;
f utl_file.file_type;
s varchar2(200);
lineString varchar(200);
v_account varchar(5);
v_IDN varchar(6);
v_quantity varchar(6);
BEGIN
v_filename := 'TEST.TXT';
DBMS_OUTPUT.PUT_LINE(v_filename); --shows filename
utl_file.fgetattr('USER_DIR', v_filename, v_file_exists, v_file_length ,v_block_size );
IF v_file_exists THEN
dbms_output.put_line('File Exists');
create table ext_table (
account varchar2(5),
idn number(6),
quantity varchar2(6)
organization external (
type oracle_loader
default directory user_dir
access parameters (
records delimited by newline
fields (
account position(1:5) char(5),
idn position(6:11) char(6),
quantity position(12:17) char(6)
location ('test.txt')
reject limit unlimited;
MERGE INTO id_req_stg t
USING (
SELECT account,
idn,
decode(quantity, '-', 0, to_number(quantity)) as quantity
FROM ext_table
) v
ON ( t.account = v.account AND t.idn = v.idn )
WHEN MATCHED THEN
UPDATE SET t.quantity = v.quantity
DELETE WHERE t.quantity = 0
WHEN NOT MATCHED THEN
INSERT (account, idn, quantity)
VALUES (v.account, v.idn, v.quantity);
ELSE
dbms_output.put_line('File Does Not Exist');
END IF; -- file exists
EXCEPTION
WHEN UTL_FILE.ACCESS_DENIED THEN
DBMS_OUTPUT.PUT_LINE('No Access!!!');
WHEN UTL_FILE.INVALID_PATH THEN
DBMS_OUTPUT.PUT_LINE('PATH DOES NOT EXIST');
WHEN others THEN
DBMS_OUTPUT.PUT_LINE('SQLERRM: ' || SQLERRM);
END;
/