In this post, you’ll learn more about the Oracle ErrorORA-12801: error signaled in parallel query server string with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-12801: error signaled in parallel query server string
Reason for the Error ORA-12801: error signaled in parallel query server string
A parallel query server reached an exception condition.
How to fix the Error ORA-12801: error signaled in parallel query server string ?
You can fix this error in Oracle by following the below steps
Check the following error message for the cause, and consult your error manual for the appropriate action.