Set the maximum length of time, in minutes, that the database
server runs without doing a checkpoint.
Scope
            Option can be set at the database (PUBLIC) level
				only.
            Requires the SET ANY SYSTEM OPTION system privilege to set this option. You must shut
                down and restart the database server for the change to take effect.
Description
This option is used with the RECOVERY_TIME option to decide
                when checkpoints should be done.