How to fix the Oracle error ORA-28651: Primary index on IOTs can not be marked unusable?

In this post, you’ll learn more about the Oracle ErrorORA-28651: Primary index on IOTs can not be marked unusable with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-28651: Primary index on IOTs can not be marked unusable

Reason for the Error ORA-28651: Primary index on IOTs can not be marked unusable

An attempt is made to mark IOT-TOP unusable thru ALTER INDEX

How to fix the Error ORA-28651: Primary index on IOTs can not be marked unusable ?

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

Remove the option UNUSABLE