Error: unable to establish db connection for user protect - invalid connection identifier.
The service name used with URT does not resolve to the service_name parameter in the Oracle database.
Review the tnsnames.ora file for the service_name. In Oracle the file can be found here: \oracle\product\oracle_version\db_1\NETWORK\ADMIN\tnsnames.ora
Example:
Review the jdbc.properties file on Enforce. The file can be found here: \Protect\config\jdbc.properties
Example:
Review oracle parameters for the configured service_name via sqlplus.
sqlplus /nolog
connect sys as sysdba
select value from v$parameter where name='service_name';
Example:
If after verifying all the above and you still get the error: Update Readiness Tool Error: "Unable to establish db connection for user protect - invalid connection identifier."
Then, make sure that you have the environment variable for the Oracle client Path is set properly and pointing to the correct location.