ORA-12811: PARALLEL_MIN_SERVERS must be less than or equal to PARALLEL_MAX_SERVERS, string

Cause : An attempt was made to set the PARALLEL_MIN_SERVERS parameter to a value higher than PARALLEL_MAX_SERVERS.

Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts

Set PARALLEL_MIN_SERVERS to a value less than or equal to PARALLEL_MAX_SERVERS (indicated in the accompanying message) and retry.

update : 29-05-2017
ORA-12811

ORA-12811 - PARALLEL_MIN_SERVERS must be less than or equal to PARALLEL_MAX_SERVERS, string
ORA-12811 - PARALLEL_MIN_SERVERS must be less than or equal to PARALLEL_MAX_SERVERS, string

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