How to fix the Oracle error ORA-32315: REFRESH FAST of “string”.”string” unsupported after mixed DML and Direct Load?

In this post, you’ll learn more about the Oracle ErrorORA-32315: REFRESH FAST of “string”.”string” unsupported after mixed DML and Direct Load with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-32315: REFRESH FAST of “string”.”string” unsupported after mixed DML and Direct Load

Reason for the Error ORA-32315: REFRESH FAST of “string”.”string” unsupported after mixed DML and Direct Load

One or more of the materialized view logs on the detail tables referenced by the specified materialized view omits the sequence number option. Such a log cannot be used to refresh a materialized view after deletes or updates and direct path insert.

How to fix the Error ORA-32315: REFRESH FAST of “string”.”string” unsupported after mixed DML and Direct Load ?

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

Use REFRESH COMPLETE. Note: you can use the DBMS_MVIEW.EXPLAIN_MVIEW() API to determine which materialized view logs omit the sequence number option.