How to fix the Oracle error ORA-16258: marking index unusable due to a constraint violation?

In this post, you’ll learn more about the Oracle ErrorORA-16258: marking index unusable due to a constraint violation with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-16258: marking index unusable due to a constraint violation

Reason for the Error ORA-16258: marking index unusable due to a constraint violation

A constraint violation occurred during the apply of a direct path load. The index will be marked unusable and the apply will be restarted.

How to fix the Error ORA-16258: marking index unusable due to a constraint violation ?

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

No action necessary. See alert log for index schema and name.