How do I close a database table in Oracle?

To close a table in the Oracle database, you can use the following steps:

1. Log in to the command line or a SQL development tool (such as SQL Developer) for Oracle database.
2. Connect to the database using an administrator account.
3. Execute the following SQL statement to close the table:
4. Disable the table named table_name.
5. This will deactivate the table, preventing it from being accessed or modified.
6. To enable the table again, you can execute the following SQL statement.
7. Enable the table named table_name.
8. This will reactivate the table, allowing it to be accessed and modified again.

Please note that closing the table does not mean closing the entire database. If you need to close the entire database, you can follow these steps:

1. Login to the command line or SQL development tool for Oracle database.
2. Connect to the database using an administrator account.
3. Run the following SQL query to close the database:
4. Please shut down immediately.
5. This will immediately close the database, terminate all user sessions, and stop the database service.
6. If you want to allow the current session to finish before shutting down the database, you can use the SHUTDOWN NORMAL statement.

Please make sure you back up the database before closing it to prevent data loss.