New 12c Hint: enable_parallel_dml
A new hint has been introduced in 12c: enable_parallel_dml. This new hint lets you enable PDML at the statement level vs. the session level, which was required in RDBMS versions before 12c. This hint is not yet in the Oracle documentation, but will be added.
See note "New 12c Hint: ENABLE_PARALLEL_DML Lets you Easily Enable Parallel DML (PDML) at the Statement Level (Doc ID 1991034.1)" for further details.