sqlplus Dynamic Spool File Name - oracle

Question

I need to give the spool file name dynamically and I have to pass the parameters when I call sqlplus. Below is what I tried
echo exit | sqlplus "{{ Oracle_username }}/ {{ Oracle_pwd}} #(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(Host={{ Oracle_HostName }} )(Port=1521))(CONNECT_DATA=(SID= {{Oracle_SID }})))" #Script.sql 'AppName' 'DatabaseName' 'ObjectType'
Over here I tried to pass App Name, Database Name and Object Type dynamically. Prior to running SQLPLUS step, I create folders dynamically (App Name , Database Name , Object Type are all folders and it will vary depending on each application) .Below is how my script.sql looks like :
SPOOL &&AppName/&&DatabaseName/&&ObjectType/Output.csv
<<SQL Script>>
SPOOL OFF
This doenst work . Can someone tell me what needs to be changed.

Answer 1

You are passing the values you want to form your spool file path and name as arguments to your script, but you need to refer to them as positional parameters:
SPOOL &1/&2/&3/Output.csv
Or if you're going to reuse them for something else you could define your own variable, set from the positional parameters:
DEFINE AppName=&1
DEFINE DatabaseName=&2
DEFINE ObjectType=&3
SPOOL &&AppName/&&DatabaseName/&&ObjectType/Output.csv
The spool file path will be relative to the directory you're in when you run the script. If that isn't what you want then put the root before the first substitution variable in the spool command, whichever form you use.
You could also include the exit in your .sql file so you don't have to echo it in; and you could use a TNS alias instead of passing all of the connection information on the command line - or if you can use a service name instead of a SID, you could use the easy connect syntax which is a bit simpler:
sqlplus username/password#//hostname:1521/service_name #Script.sql 'AppName' 'DatabaseName' 'ObjectType'

Answer 2

set your appname,dbname,objecttype's as environmental variables and then Try like below
[oracle#ct-myhost-02 ~]$ export app_name=/stage
[oracle#ct-myhost-02 ~]$ export database_name=PSES
[oracle#ct-myhost-02 ~]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Wed Feb 1 12:04:08 2017
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> spool $app_name/$database_name/out.csv
SQL> select * from dual;
D
-
X
SQL> spool off;
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
[oracle#ct-myhost-02 ~]$ ls -l /stage/PSES/out.csv
-rw-r-----. 1 oracle oinstall 286 Feb 1 12:04 /stage/PSES/out.csv