How to fix the Oracle error ORA-32316: REFRESH FAST of “string”.”string” unsupported after mixed DML?

In this post, you’ll learn more about the Oracle ErrorORA-32316: REFRESH FAST of “string”.”string” unsupported after mixed DML with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-32316: REFRESH FAST of “string”.”string” unsupported after mixed DML

Reason for the Error ORA-32316: REFRESH FAST of “string”.”string” unsupported after mixed DML

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 have been performed on multiple detail tables.

How to fix the Error ORA-32316: REFRESH FAST of “string”.”string” unsupported after mixed DML ?

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.