Oracle : Ошибка ORA-12839

"cannot modify an object in parallel after modifying it"
*Cause: Within the same transaction, an attempt was made to perform
parallel modification operations on a table after it had been modified.
This is not permitted.
*Action: Rewrite the transaction or break it up into two transactions:
one containing the parallel modification and the second containing the
initial modification operation.

Попробовать перевести

Поискать эту ошибку на форуме