TRACE_LEVEL_CLIENT=16 TRACE_DIRECTORY_CLIENT=C:\trace TRACE_UNIQUE_CLIENT=ON DIAG_ADR_ENABLED =OFF
--Specify direct tns name configure in TNSNAMES.ORA file SQLPLUS username@<tns_alias> --Easy connect SQLPLUS username@"(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=server_hostname_here)(PORT=listener_port_here))(CONNECT_DATA= (SERVICE_NAME=service_name_here)))"