How to fix the Oracle error ORA-38448: Indexing predicates with “string” operator is not supported.?

In this post, you’ll learn more about the Oracle ErrorORA-38448: Indexing predicates with “string” operator is not supported. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-38448: Indexing predicates with “string” operator is not supported.

Reason for the Error ORA-38448: Indexing predicates with “string” operator is not supported.

An unsupported operator was used in the exf$indexoper array.

How to fix the Error ORA-38448: Indexing predicates with “string” operator is not supported. ?

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

Choose the operators from this list : =, <, >, <=, >=, !=, is null, is not null, nvl, and between.