In this post, you’ll learn more about the Oracle ErrorORA-30360: REF not supported with query rewrite with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-30360: REF not supported with query rewrite
Reason for the Error ORA-30360: REF not supported with query rewrite
The statement contained a REF operator. Repeatable behavior cannot be guaranteed with the REF operator. Therefore, query rewrite cannot support the REF operator.
How to fix the Error ORA-30360: REF not supported with query rewrite ?
You can fix this error in Oracle by following the below steps
Remove the reference to the REF operator or disable the REWRITE option on the materialized view.