This command tells Oracle8i to consider all transactions following the command for parallel execution. Use this command, or use hints (see below) to enable parallel execution of specific commands.
||The table that is modified must be a partitioned table to use parallel execution. The syntax is identical to non-parallel DDL.
||In general, you should execute only one parallel execution command per transaction - issue a commit between transactions.
||A parallel UPDATE command uses many more locks than a non-parallel (serial) UPDATE command.
||This hint tells Oracle8i to use parallel execution of the command with a degree of parallelism set to five. There are many other hints you can use to customize parallel execution, but this is the main one.