Peopletools 8.57 Change Assistant
In the upgrade from FSCM 9.1/PT8.55 to FSCM 9.2/PT8.57, upon installing Image 26/PT8.57.04, Change Assistant cannot connect to the DB, on the Native-OS, Win R2016, box.
I am pretty sure of the credentials, since I am able to connect to the ORCL DB with SQL Developper, under SYSADM, CONNECTID ... to test the connection and fetch some data.
However, in SQLPlus, I was not able to connect to the DB, getting the "ORA 12560 TNS Protocol Adaptor".
I was able to tnsping the DB, and the listener is up and running; the ORACLE_HOME and ORACLE_SID are set.
There were some hints on Modifying the %PATH% to include %ORACLE_HOME% first, before the Client, Checking the sqlnet.ora ... but nothing worked out.