Oracle : Ошибка ORA-12091

"cannot online redefine table \"%s\".\"%s\" with materialized views"
*Cause: An attempt was made to online redefine a table that had
materialized views defined on it or had a materialized view log
defined on it or is a master.
*Action: Drop all materialized views and materialized view logs before
attempting to online redefine the table.

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