How to fix the Oracle error ORA-42018: partition cannot be redefined online because of index organization incompatibility?

In this post, you’ll learn more about the Oracle ErrorORA-42018: partition cannot be redefined online because of index organization incompatibility with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-42018: partition cannot be redefined online because of index organization incompatibility

Reason for the Error ORA-42018: partition cannot be redefined online because of index organization incompatibility

interim table is incompatible with partition being redefined because one or more of the following apply:

– one is index-organized and the other is not

– one has IOT overflow segment and the other does not

– one has IOT mapping table and the other does not

How to fix the Error ORA-42018: partition cannot be redefined online because of index organization incompatibility ?

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

Ensure that the interim table is compatible with the partition being redefined.