What does marking sensitive SQL statement values produce for unauthorized users?

Marking sensitive SQL statement values ensures that unauthorized users cannot access sensitive information. By obscuring these values and representing them with asterisks, the system enhances security and prevents exposure of potentially sensitive data such as passwords, personally identifiable information, or confidential business data. This approach allows authorized users to perform necessary analytics and troubleshooting without compromising the confidentiality of sensitive information.

The other options do not align with the purpose of marking sensitive values. Providing full access to performance metrics or standard filtering without restrictions would undermine the security of the data. Notification of access attempts might be useful for monitoring, but it doesn't protect the sensitive information itself in the same way as obscuring it. Therefore, obscuring values with asterisks is the method employed to safeguard sensitive SQL statement information from unauthorized access.