How to fix the Oracle error ORA-14657: cannot cascade row migration to reference-partitioned child table?

In this post, you’ll learn more about the Oracle ErrorORA-14657: cannot cascade row migration to reference-partitioned child table with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-14657: cannot cascade row migration to reference-partitioned child table

Reason for the Error ORA-14657: cannot cascade row migration to reference-partitioned child table

Update of a parent key may require migration of rows in reference-partitioned child tables, however this is not supported because the parent key was not suitably indexed.

How to fix the Error ORA-14657: cannot cascade row migration to reference-partitioned child table ?

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

Replace the existing index on the parent key with a unique index that does not contain any columns in addition to the parent key.