Advice executing oracle package using shell script.

Question

Hi,
I am writing one shell script that accepts several parameters as an input. These parameters are then passed while executing Oracle package procedure. However this procedure has an OUT parameter and I am not aware of how to receive that parameter in shell script.
Any advice /suggestion is really appreciated.
Below is the part of code I am using ... (P_OUT is suppose to be an out parameter for package)
sqlplus -s apps/apps <<endsql
whenever sqlerror exit failure
set serveroutput on size 10000
execute TEST_PKG.GET_COC_REQ ('$P_FROM_DATE','$P_TO_DATE','$P_MONTH_YY', '$P_OUT');
endsql

Answer 1

There is more than one way. Here an example :
SQL> select ename,sal from emp where empno=7902;
ENAME             SAL
FORD             3000
SQL> create or replace procedure extsal (
  2     empnum  in      number,
  3     salout  out     number)
  4  is
  5  begin
  6     select sal into salout
  7     from emp
  8     where empno = empnum;
  9* end;
SQL> /
Procedure created.
SQL> exit
Disconnected from Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production
$ EMP=7902
$ SAL=`sqlplus -s scott/tiger << EOF
set head off
var salout number;
exec extsal ($EMP, :salout);
print salout
exit
EOF
`$ echo $SAL | awk -F. '{print $2}'
3000
$