What is Host Program in Oracle




What is Host Program?
and
How to create Host Program?
and
What is .Prog file?

To run a unix based shell script as a concurrent program, the executable of the concurrent program should be registered as a ‘Host’ program.

The execution file name of the host program should end with .prog extension and a soft link should be created for the .prog file.

Here is an example of creation of host program with one parameter:
Step 1:
Create a prog file XX_HOST_PROGRAM.prog as shown below
###############################################################################
#  Copyright (c) Oracle Shooter.     All rights reserved.
###############################################################################
###############################################################################
# Application       : XXSD                                                    #
# Program Name      : XX Host Program                                         #
# Version #         : 1.0                                                     #
# Title             : XX_HOST_PROGRAM                                         #
# Remarks           : Shell Script                                            #
# Created by        : Oracle shooter                                          #
# Creation Date     : 25-May-2020                                             #
#                                                                             #
# Description       : Use Shell script for Print  Message                     #
#                                                                             #
#=============================================================================#
# Date        | Name             | Remarks                                    #
#=============================================================================#
# 25-05-2020  | MANOJ KUMAR      | Initial Draft                              #
###############################################################################
#                 These 5 are system Defines Parameters                       #
###############################################################################
 
V_SUBJECT0=${0}
V_SUBJECT1=${1}
V_SUBJECT2=${2}
V_SUBJECT3=${3}
V_SUBJECT4=${4}
 
echo "***********************************************************"
echo "                   SYSTEM PARAMETERS  Details              "
echo "***********************************************************"
echo "  "
echo "Parameter 0 :- Shell script name along with Path       : " $V_SUBJECT0
#echo "Parameter 1 :- Oracle Apps User Name and Password     : " $V_SUBJECT1
echo "Parameter 2 :- Application user_id from FND_USER       : " $V_SUBJECT2
echo "Parameter 3 :- Application user_name from FND_USER  : " $V_SUBJECT3
echo "Parameter 4 :- Concurrent Program Request ID       : " $V_SUBJECT4
 
###############################################################################
#          Defined Parameters and assign values in other variables            #
#          Concurrent Program Parameter start from 5                          #
###############################################################################
 
V_MESSAGE=${5}
 
echo "***********************************************************"
echo "                   INPUT PARAMETERS  Details               "
echo "***********************************************************"
echo "  "
echo "Parameter 5  :- Your Message : "  $V_MESSAGE
echo "  "

Step 2:

Upload the .prog file to the bin folder of rexspective application top and give necessary file permissions






Step 3: Go to respective location :-

/u01/appluat/UAT/apps/apps_st/appl/xxsd/12.0.0/bin




Create Soft Link:- Then run this script for creating the soft link

ln -s $FND_TOP/bin/fndcpesr  XX_HOST_PROGRAM
Soft link will be created against fndcpesr so that concurrent manager will recoganize as host program.



Step 4:

Create Executable and Concurrent Program





OUTPUT:- 

***********************************************************
                   SYSTEM PARAMETERS  Details              
***********************************************************
  
Parameter 0 :- Shell script name along with Path  :  /u01/appluat/UAT/apps/apps_st/appl/xxsd/12.0.0/bin/XX_HOST_PROGRAM.prog
Parameter 1 :- Oracle Apps User Name and Password :  APPS/Ap912323223#t
Parameter 2 :- Application user_id from FND_USER  :  0
Parameter 3 :- Application user_name from FND_USER  :  SYSADMIN
Parameter 4 :- Concurrent Program Request ID     :  1539961064
***********************************************************
                   INPUT PARAMETERS  Details               
***********************************************************
  
Parameter 5  :- Your Message :  Oracle Shooter

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