In your CDB1 container database, the DB_CREATE_FILE_DESTparameter is set to '/u01/app/ oracle/oradata'.
CDB1has an application container called REGIONS_APP.
There are no seeds for REGIONS_APPand there are no other application containers.
You plan to execute this command.
CREATE PLUGGABLE DATABASE AS SEED ADMIN USER seed_adm IDENTIFIED BY admin_123; What must you do for the command to execute successfully?