How to restrict access to sys_context in oracle?

@addison 

To restrict access to sys_context in Oracle, you can revoke the necessary privileges from unauthorized users or roles. Here are the steps to restrict access to sys_context:

1. Connect to the Oracle database as a user with administrative privileges.
2. Revoke the necessary privileges on the SYS_CONTEXT function from unauthorized users or roles. You can do this by running the following SQL command: REVOKE EXECUTE ON SYS_CONTEXT FROM
3. Make sure all necessary privileges are granted only to authorized users or roles.

By following these steps, you can restrict access to the SYS_CONTEXT function in Oracle and ensure that only authorized users can access it.