How to fix the Oracle error DRG-11303: secondary indexes are not supported by this indextype?

In this post, you’ll learn more about the Oracle ErrorDRG-11303: secondary indexes are not supported by this indextype with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

DRG-11303: secondary indexes are not supported by this indextype

Reason for the Error DRG-11303: secondary indexes are not supported by this indextype

Cause: You attempted to create an index on an index-organized table, but the indextype does not support this action.

How to fix the Error DRG-11303: secondary indexes are not supported by this indextype ?

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

Action: None