How do I monitor open database sessions associated with Oracle ODBC connections? Use the following steps to monitor open database sessions associated with Oracle ODBC connections:1. Login to the machine which hosts your Oracle database. 2. su to your Oracle user. 3. execute your Oracle user's .profile. 4. cd to ORACLE_ HOME/bin. 5. Execute the following command: /sqplus /nolog 6. Type: connect as sysdba 7. Provide your Oracle DBA username and password. 8. Execute the startup command if the instance is not running. 9. Execute the following command: select count (*) from v$session where username is not null;