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Syntax for RECOVER command with PARALLEL clause

The syntax in the example below shows the code for the RECOVER command with the PARALLEL clause. 
RECOVER DATABASE |TABLESPACE <tablespace_name> |DATAFILE

<datafile_name> [NOPARALLEL |

PARALLEL (DEGREE N)
];

The value of DEGREE specifies the number of recovery processes Oracle will create to apply the redo information to the datafiles. This value overrides the value set in the RECOVERY_PARALLELISM parameter.
If you use the NOPARALLEL clause in the RECOVER command, you are specifying that the recovery is a serial process. This clause again overrides the value for the RECOVERY_PARALLELISM parameter.