| Error | ORA-12030 |
Description | cannot create a fast refresh materialized view | Cause | The materialized view log did not exist or did not log the information needed by the materialized view to perform a fast refresh. | Action | Ensure that the materialized view log exists and logs the necessary information.
- For ROWID materialized views, the master table`s ROWID must be logged.
- For primary key materialized views, the master table`s primary key columns must be logged.
- For subquery materialized views, the filter columns, primary key, and ROWID values must be logged.
- For object materialized views, object id must be logged.
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