How to fix the Oracle error ORA-15516: parallel preprocessing worker hit error ORA-string?

In this post, you’ll learn more about the Oracle ErrorORA-15516: parallel preprocessing worker hit error ORA-string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-15516: parallel preprocessing worker hit error ORA-string

Reason for the Error ORA-15516: parallel preprocessing worker hit error ORA-string

One of the parallel preprocessing workers died unexpectedly while processing the workload.

How to fix the Error ORA-15516: parallel preprocessing worker hit error ORA-string ?

You can fix this error in Oracle by following the below steps

Find the root cause or simply preprocess the workload using only one process.