Please help to call oracle procedure with out paramter from shell script

Question

Hi
I want to call a process with out parameter from shell script. I am calling process in shell script in below way
function Process_loads {
( echo 'set serveroutput on size 1000000 arraysize 1'
echo "set pagesize 0 term on verify off feedback off echo off"
echo "BEGIN"
echo " dbms_output.put_line('Before Calling The package'); "
echo " x ( '$1', '$2', '$2', '$4', '$5', '$error_code'); "
echo " dbms_output.put_line('After Calling The package'); "
echo "EXCEPTION "
echo " WHEN OTHERS THEN "
echo " dbms_output.put_line('BIN_LOAD_ERROR' || SQLERRM); "
echo " ROLLBACK;"
echo "END;"
echo "/" ) | sqlplus -s $USER/$PASSWORD@$SID
Here $error_code is out paramter. All varaibles passed in process are declared with export command.
When executing .sh it gives below error
"sh ERROR at line 3: ORA-06550: line 3, column 99: PLS-00363: expression '' cannot be used as an assignment target ORA-06550: line 3, column 3: PL/SQL: Statement ignored".
Please help to get rid from this error or please suggest how to call a oracle procedure with out paramter from unix shell script.
Thanks in advance

Answer 1

You can try this:
From sql*plus
SQL> ed
  1  create or replace procedure my_proc(p_id in int, p_result out int)
  2  as
  3  begin
  4  select 10 * p_id
  5  into p_result
  6  from dual;
  7* end my_proc;
SQL> /
Procedure created.
SQL> set serveroutput on
SQL> declare
  2  v_r int;
  3  begin
  4  my_proc(10,v_r);
  5  dbms_output.put_line(v_r);
  6  end;
  7  /
100
PL/SQL procedure successfully completed.
from bash:
testproc.sh:
#!/bin/bash
(echo 'set serveroutput on';
echo 'declare';
echo 'v_r int;';
echo 'begin';
echo 'my_proc(10,v_r);';
echo 'dbms_output.put_line(v_r);'
echo 'end;';
echo '/';) | sqlplus -s u1/u1
Console:
oracle@mob-ubuntu:~$ chmod u+x testproc.sh
oracle@mob-ubuntu:~$ ./testproc.sh
100
PL/SQL procedure successfully completed.With kind regards
Krystian Zieja