In this post, you’ll learn more about the Oracle ErrorDRG-11308: unsupported column expression string with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
DRG-11308: unsupported column expression string
Reason for the Error DRG-11308: unsupported column expression string
Cause: You attempted to create an index with an unsupported column expression.
How to fix the Error DRG-11308: unsupported column expression string ?
You can fix this error in Oracle by following the below steps
Action: None