Oracle : Ошибка ORA-12832


"Could not allocate slaves on all specified instances"
*Cause: After executing a query on a global v$ fixed view, one or more
instances failed to allocate a slave to process query
*Action: To allow results to be returned by sucessfully allocated slaves,
execute ALTER SESSION SET ALLOW_PARTIAL_SN_RESULTS=TRUE statement,
or check parameters of instances

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