Oracle 12c: Save State in a single instance

The SAVE STATE clause serves to maintain the state of the PDB when the CDB is restarted. For example, if when the CDB was restarted the OPEN_MODE of the PDB was in READ ONLY, then when the CDB will be available the PDB will initialize in READ ONLY state automatically. Saving the state of the PDBS PDBOL and PDBOL_2  through the command “ALTER PLUGGABLE DATABASE <PDB NAME> SAVE STATE;”: Simulating the unavailability of the CBD: Rebooting the CDB:  See that the PDB states were maintained:  The saved states of the…