Oracle Error ORA-32423: commit SCN-based materialized view log cannot be dropped on table “string”.”string” when there exist direct load/PMOP log entries for the table

Oracle Error Message

ORA-32423: commit SCN-based materialized view log cannot be dropped on table “string”.”string” when there exist direct load/PMOP log entries for the table

Reason for the Error

An attempt was made to drop a commit SCN-based materialized view log on a table which had direct load/PMOP log entries in sys.sumdelta$ and sys.sumpartlog$.

Solution

Refresh the table’s dependent materialized views before dropping commit SCN-based materialized view log on the table.