In this post, you’ll learn more about the Oracle ErrorORA-39805: Parallel loads are not allowed when loading child and parent. with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-39805: Parallel loads are not allowed when loading child and parent.
Reason for the Error ORA-39805: Parallel loads are not allowed when loading child and parent.
A parallel load was requested when loading the child and parent of a partitioning referential constraint. This is not allowed.
How to fix the Error ORA-39805: Parallel loads are not allowed when loading child and parent. ?
You can fix this error in Oracle by following the below steps
Remove the parallel option.