How to view log records in Oracle?

To view Oracle’s log records, you can use the following methods:

1. Connect to an Oracle database using SQL*Plus.
2. Run the following command to view the logging of the current session:
3. Choose the username, operating system username, machine, and SQL text from the v$session table where the username is not empty.
4. This will display the username, operating system username, machine name, and executed SQL statements for all current active sessions.
5. Run the following command to check the error logs of the database:
6. Retrieve all information from the view called v$diag_info.
7. This will display diagnostic information for the database, including the location and name of error logs.
8. Run the following command to view the warning and error logs of the database:
9. Retrieve all information from the v$diag_alert_ext view.
10. This will display detailed information of warnings and error logs in the database, including date, time, message, and log level.
11. Run the following command to view the database’s trace file:
12. Retrieve all information from the v$diag_trace_file view.
13. This will display the location and name of the database’s trace file.

Please note that you need to have the appropriate permissions to carry out the above command.