Oracle : Ошибка ORA-12827


"insufficient parallel query slaves (requested %s, available %s, parallel_min_percent %s)"
*Cause: PARALLEL_MIN_PERCENT parameter was specified and fewer than
the minimum number of slaves were acquired
*Action: Either reexecute the query with a lower PARALLEL_MIN_PERCENT or
wait until some running queries are completed, thus freeing
up slaves

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