How to fix the Oracle error ORA-28661: Object already has COMPRESS clause specified?

In this post, you’ll learn more about the Oracle ErrorORA-28661: Object already has COMPRESS clause specified with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-28661: Object already has COMPRESS clause specified

Reason for the Error ORA-28661: Object already has COMPRESS clause specified

Attempt to specify compress for iot/index which already has a compression clause.

How to fix the Error ORA-28661: Object already has COMPRESS clause specified ?

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

This is a ‘create time only’ attribute