How to fix the Oracle error ORA-32300: cannot drop a secondary materialized view “string”.”string”?

In this post, you’ll learn more about the Oracle ErrorORA-32300: cannot drop a secondary materialized view “string”.”string” with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-32300: cannot drop a secondary materialized view “string”.”string”

Reason for the Error ORA-32300: cannot drop a secondary materialized view “string”.”string”

An attempt was made to drop a materialized view of a nested table column’s storage table.

How to fix the Error ORA-32300: cannot drop a secondary materialized view “string”.”string” ?

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

Drop the materialized view that contains the nested table column. This will implicitly drop all secondary materialized views.