How to fix the Oracle error ORA-23412: master table’s primary key columns have changed?

In this post, you’ll learn more about the Oracle ErrorORA-23412: master table’s primary key columns have changed with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-23412: master table’s primary key columns have changed

Reason for the Error ORA-23412: master table’s primary key columns have changed

The master table’s primary key constraint was modified after the primary key materialized view was created.

How to fix the Error ORA-23412: master table’s primary key columns have changed ?

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

Drop and recreate the primary key materialized view