Oracle Solution for Error ora-41693

Solution for Oracle Error ORA-41693

ORA-41693: invalid attribute or data type for an aggregate operator: string

What triggered the Error:

An attempt was made to apply an aggregate operator on an invalid attribute or an attribute with invalid or unsupported data type in the aggregate operator. Only NUMBER and DATE attributes are allowed in the aggregate operators.

What should we do to fix it:

Correct the input and try again.