ORA-32321: REFRESH FAST of "[string]"."[string]" unsupported after detail table TRUNCATE

Cause: A detail table has been truncated and no materialized view supports fast refersh after a detail table has been truncated

Action: Use REFRESH COMPLETE. Note: you can determine why your materialized view does not support fast refresh after TRUNCATE using the DBMS_MVIEW.EXPLAIN_MVIEW() API.

Error Type: ORA

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