In this post, you’ll learn more about the Oracle ErrorQSM-02047: window function in mv with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
QSM-02047: window function in mv
Reason for the Error QSM-02047: window function in mv
The capability in question is not supported when the materialized view uses a window function.
How to fix the Error QSM-02047: window function in mv ?
You can fix this error in Oracle by following the below steps
Re-phrase the query to avoid the use of window functions.