Oracle : Ошибка ORA-12047

"PCT FAST REFRESH cannot be used for materialized view \"%s\".\"%s\""
*Cause: PCT refresh is either not enabled on this materialized view or not
possible after set of the base table changes since last refresh.
*Action: Use just REFRESH FORCE, which will reinstantiate the entire table
and try to pick the best refresh method on the materialized view
Do explain_mview to look at the cause why PCT refresh is not possible
on this materialized view

Попробовать перевести

Поискать эту ошибку на форуме