dbms_cloud_dblink_internal.create_database_link(
db_link_name IN VARCHAR2,
hostname IN VARCHAR2,
port IN NUMBER,
service_name IN VARCHAR2,
ssl_server_cert_dn IN VARCHAR2,
credential_owner IN VARCHAR2,
credential_name IN VARCHAR2,
directory_name IN VARCHAR2,
gateway_link IN BOOLEAN,
credential_synonym IN BOOLEAN,
public_link IN BOOLEAN);