How to fix the Oracle error ORA-55372: entailment (rules index) ‘string’ already exists?

In this post, you’ll learn more about the Oracle ErrorORA-55372: entailment (rules index) ‘string’ already exists with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-55372: entailment (rules index) ‘string’ already exists

Reason for the Error ORA-55372: entailment (rules index) ‘string’ already exists

The entailed graph (rules index) already exists.

How to fix the Error ORA-55372: entailment (rules index) ‘string’ already exists ?

You can fix this error in Oracle by following the below steps

Specify a different rules index name, or drop the existing rules index and then create a new rules index with that name.