Oracle Error QSM-02206: PCT FAST REFRESH is not possible because this query join may produce extra duplicate rows

Oracle Error Message

QSM-02206: PCT FAST REFRESH is not possible because this query join may produce extra duplicate rows

Reason for the Error

The capability in question was not supported because the materialized view contained a join condition that can result in duplicate rows in the materialized view.

Solution

Rephrase the query to avoid the occurrence of duplicate rows in the materialized view.

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