Authentication for Pluggable Database Lifecycle Management
You cannot have an ORDS enabled schema in a container database. To perform the PDB
            lifecycle management operations, the default CDB administrator credentials,
                db.cdb.adminUser and db.cdb.adminUser.password
            must be defined in the connection pool. In this case, it is not required to specify an
            user schema in the URI.
               
- Create the CDB administrator user and grant the SYSDBA privilege. In this
                    example, the user is called 
C##DBAPI_CDB_ADMIN. However, any suitable common user name can be used.CREATE USER C##DBAPI_CDB_ADMIN IDENTIFIED BY <PASSWORD>; GRANT SYSDBA TO C##DBAPI_CDB_ADMIN CONTAINER = ALL; - Set the 
db.cdb.adminUseranddb.cdb.adminUser.passwordproperties for the connection pool as shown in the following code snippet:echo db.cdb.adminUser=C##DBAPI_CDB_ADMIN as SYSDBA > cdbAdmin.propertiesecho db.cdb.adminUser.password=<PASSWORD> >> cdbAdmin.propertiesjava -jar ords.war set-properties --conf apex_pu cdbAdmin.propertiesrm cdbAdmin.properties 
The ORDS role, SQL Administrator must be used to access the
                https://<server>/ords/_/db-api/stable/database/pdbs/
            services.