Oracle Error QSM-02205: PCT FAST REFRESH is not possible if there is a subquery inside select-list

Oracle Error Message

QSM-02205: PCT FAST REFRESH is not possible if there is a subquery inside select-list

Reason for the Error

The capability in question was not supported because the materialized view query contained a subquery inside a select-list.

Solution

Rephrase the query to avoid the use of a subquery inside a select-list.