connect database
sqlplus / nolog
sqlplus / as sysdba
sqlplus sys/pw@host/service_name AS SYSDBA
show cdb pdb
- Determining Whether a Database is a CDB
SELECT CDB FROM V$DATABASE;
show con_name;
show pdbs;
ALTER PLUGGABLE DATABASE pdb1 OPEN
ALTER PLUGGABLE DATABASE pdb1 CLOSE
connect database
show cdb pdb