In this post, you’ll learn more about the Oracle ErrorORA-41691: invalid aggregate specification: string with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-41691: invalid aggregate specification: string
Reason for the Error ORA-41691: invalid aggregate specification: string
The aggregate operation specified in the rule condition was invalid.
How to fix the Error ORA-41691: invalid aggregate specification: string ?
You can fix this error in Oracle by following the below steps
Correct the input and try again.