SQL*Plus issues with connection to DB from Command Prompt - oracle

Question

I am on SQL*Plus: Release 21.0.0.0.0, on a Windows machine.
In the command prompt, when I do
C:\users\TOMMY> sqlplus /nolog
I see this
SQL>
Here I connect to the Database using a connection string(EZ Connect format)
With Credentials,
username -> dddd
pwd -> wefm#vrev
host -> local
port -> 15210
ServiceName -> abcd.xysp.gthe.com
SQL> connect dddd/"wefm#vrev"#local:15210/abcd.xysp.gthe.com
And I see Output(after a few seconds),
Connected.
My issue begins when I decide to connect from Windows directly with sqlplus. Mentioned below
C:\users\TOMMY> sqlplus -S
dddd/"wefm#vrev"#local:15210/abcd.xysp.gthe.com
Results in an error, I am baffled. What am I missing
ERROR: ORA-12154: TNS:could not resolve the connect identifier
specified
I have also tried putting the connection string in single quotes (').
When I do that I get this whole thing printed out, which I assume is indicative of me passing the wrong args.
SQL*Plus: Release 21.0.0.0.0 - Production Version 21.3.0.0.0
Copyright (c) 1982, 2021, Oracle. All rights reserved.
Use SQLPlus to execute SQL, PL/SQL and SQLPlus statements.
Usage 1: sqlplus -H | -V
-H Displays the SQL*Plus version and the
usage help.
-V Displays the SQL*Plus version.
Usage 2: sqlplus [ [] [{logon | /nolog}] [] ]
is: [-C ] [-F] [-L] [-M ""]
[-NOLOGINTIME]
[-R ] [-S]
-C <version> Sets the compatibility of affected commands to the
version specified by <version>. The version has
the form "x.y[.z]". For example, -C 10.2.0
-F This option improves performance in general. It changes
the default values settings.
See SQL*Plus User's Guide for the detailed settings.
-L Attempts to log on just once, instead of
prompting on error.
-M "<options>" Sets automatic HTML or CSV markup of output. The options
have the form:
{HTML html_options|CSV csv_options}
See SQL*Plus User's Guide for detailed HTML and CSV options.
-NOLOGINTIME Don't display Last Successful Login Time.
-R <level> Sets restricted mode to disable SQL*Plus commands
that interact with the file system. The level can
be 1, 2 or 3. The most restrictive is -R 3 which
disables all user commands interacting with the
file system.
-S Sets silent mode which suppresses the display of
the SQL*Plus banner, prompts, and echoing of
commands.
is: {[/][#<connect_identifier>] | / }
[AS {SYSDBA | SYSOPER | SYSASM | SYSBACKUP | SYSDG
| SYSKM | SYSRAC}] [EDITION=value]
Specifies the database account username, password and connect
identifier for the database connection. Without a connect
identifier, SQL*Plus connects to the default database.
The AS SYSDBA, AS SYSOPER, AS SYSASM, AS SYSBACKUP, AS SYSDG,
AS SYSKM and AS SYSRAC options are database administration privileges.
<connect_identifier> can be in the form of Net Service Name
or Easy Connect.
#[<net_service_name> | [[//]Host[:Port]/<service_name>] |
[[[protocol:]//]host1{,host12}[:port1]{,host2:port2}[/service_name]
[:server][/instance name][?[parameter name=value]
{&parameter name=value}]]]
<net_service_name> is a simple name for a service that resolves
to a connect descriptor.
Example: Connect to database using Net Service Name and the
database net service name is ORCL.
sqlplus username/mypassword#ORCL
Host specifies the host name or IP address of the database
server computer.
Port specifies the listening port on the database server.
<service name> specifies the service name of the database you
want to access.
Example: Connect to database using Easy Connect and the
Service name is ORCL.
sqlplus username/mypassword#Host/ORCL
The /NOLOG option starts SQL*Plus without connecting to a
database.
The EDITION specifies the value for Session Edition.
is: #|[.] [ ...]
Runs the specified SQL*Plus script from a web server (URL) or the
local file system (filename.ext) with specified parameters that
will be assigned to substitution variables in the script.
When SQLPlus starts, and after CONNECT commands, the site profile
(e.g. $ORACLE_HOME/sqlplus/admin/glogin.sql) and the user profile
(e.g. login.sql in the working directory) are run. The files may
contain SQLPlus commands.
Refer to the SQL*Plus User's Guide and Reference for more information.
I would like a solution that only involves using a connection string. I don't want to be using tns_ora file
Also without any manual intervention. I don't want to separately enter the password after I put in 'username#connect-identifier'.
Please ignore security related issues of passing in the password visibly in the cmd prompt. That is fine with me.

Answer 1

Solution powershell script test-connect2.ps1:
$username = "demin"
$password = '"test#test"'
$connect_string ="10.241.33.71:1521/DEV"
$log_file = "log.txt"
$list_scripts = "connect $username/$password#$connect_string"
$list_scripts = $list_scripts + "
select 1,sysdate from dual;
#file1.sql
#file2.sql"
$list_scripts | sqlplus -s /nolog >>$log_file
Run script:
C:\instantclient_21_3>powershell .\test-connect2.ps1
output log.txt
1 SYSDATE
---------- ---------
1 27-MAY-22
2 SYSDATE
---------- ---------
2 27-MAY-22
3 SYSDATE
---------- ---------
3 27-MAY-22
SQL*Plus: Release 11.2.0.4.0 Production on Fri May 27 06:34:41 2022
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
SQL> alter user DEMIN identified by "test#test";
User altered.
SQL> exit
Disconnected from Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
C:\>sqlplus demin/"test#test"#dev19
SQL*Plus: Release 11.2.0.4.0 Production on Fri May 27 06:35:14 2022
Copyright (c) 1982, 2013, Oracle. All rights reserved.
ERROR:ORA-12154: TNS:could not resolve the connect identifier specified
Enter user-name:
C:\>sqlplus demin/\"test#test\"#dev19
SQL*Plus: Release 11.2.0.4.0 Production on Fri May 27 06:35:23 2022
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
SQL> show user
USER is "DEMIN"
SQL>
C:\app\product\18.0.0\dbhomeXE\bin>sqlplus demin/\"test#test\"#dev19
SQL*Plus: Release 18.0.0.0.0 - Production on Fri May 27 10:28:18 2022
Version 18.4.0.0.0
Copyright (c) 1982, 2018, Oracle. All rights reserved.
Last Successful login time: Fri May 27 2022 06:35:29 +03:00
Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.12.0.0.0
SQL>
C:\instantclient_19_15>sqlplus demin/\"test#test\"#dev19
SQL*Plus: Release 19.0.0.0.0 - Production on Fri May 27 11:23:35 2022
Version 19.15.0.0.0
Copyright (c) 1982, 2021, Oracle. All rights reserved.
Last Successful login time: Fri May 27 2022 10:31:49 +03:00
Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.12.0.0.0
SQL>
C:\instantclient_21_3>sqlplus demin/\"test#test\"#dev19
SQL*Plus: Release 21.0.0.0.0 - Production on Fri May 27 11:18:08 2022
Version 21.3.0.0.0
Copyright (c) 1982, 2021, Oracle. All rights reserved.
ERROR:
ORA-12154: TNS:could not resolve the connect identifier specified