Hi, Sometimes You can get ” ORA-39710: the database mode conflicts with the connection type ” error.   Details of error are as follows. ORA-39710: the database mode conflicts with the connection type DBUA upgrade to 12.2 fails with  below error which can be seen in  catupgrd0.log file get_instance_status_and_name: unexpected error in exec_DB_script output produced in … Continue reading ORA-39710: the database mode conflicts with the connection type