As of May 2018, Oracle DBaaS Monitor is decommissioned in favor of Oracle SQL Developer Web. Beginning May 2018, new Oracle Database Classic Cloud Service database deployments of single-instances databases include SQL Developer Web instead of DBaaS Monitor. If you have an older database deployment, you should replace DBaaS Monitor with SQL Developer Web as soon as is feasible. For instructions, see Updating the Cloud Tooling on Database Classic Cloud Service. For information about SQL Developer Web, see Using Oracle SQL Developer Web in Database Classic Cloud Service.