AUTOMATIC PDB OPENING

Automatically keep PDBs State after CDB STARTUP:

SQL> ALTER PLUGGABLE DATABASE PDB1 SAVE STATE;
SQL> ALTER PLUGGABLE DATABASE ALL SAVE STATE;
SQL> ALTER PLUGGABLE DATABASE PDB1,PDB3,PDB6 SAVE STATE;

Automatically keep PDBs State after CDB STARTUP:

SQL> ALTER PLUGGABLE DATABASE PDB1 DISCARD STATE;

SQL> ALTER PLUGGABLE DATABASE ALL DISCARD STATE;
SQL> ALTER PLUGGABLE DATABASE PDB1,PDB3,PDB6 DISCARD STATE;