Certificates FAQ
Cloud Databases certificates are authenticated by unique TLS certificates. To verify this, you can inspect the certificate that your service presents when opening a connection. The certificate contains the hostname for a single instance. Cloud Databases data plane clusters possess their own distinctive root certificate. When you're engaged in certificate validation procedures, exercise caution and select the correct root certificate for each instance. For more information, see Connecting an external application.
Connecting an external application documentation
Choose the appropriate service documentation for connecting an external application:
Mutual TLS
Except for Cloud Databases does not support mutual TLS for client connections. Presenting client certificates or configuring trusted root certificate authorities (CAs) for client certificates is not supported.