$ sqlplus sys@pdb1 as sysdba
SQL> alter user system identified by “PasswordNew”;
alter user system identified by “PasswordNew”
*
ERROR at line 1:
ORA-65066: The specified changes must apply to all containers
SQL> show con_name
CON_NAME
————
PDB1
SQL> connect / as sysdba
Connected.
SQL> alter user system identified by “PasswordNew”;
User altered.
SQL> show con_name
CON_NAME
————
CDB$ROOT