How to fix the Oracle error ORA-38740: Usable blocks value string is not valid.?

In this post, you’ll learn more about the Oracle ErrorORA-38740: Usable blocks value string is not valid. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-38740: Usable blocks value string is not valid.

Reason for the Error ORA-38740: Usable blocks value string is not valid.

A flashback database log file header contained a usable blocks value greater than the file size. The flashback database log file file is corrupt.

How to fix the Error ORA-38740: Usable blocks value string is not valid. ?

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

If you are doing a FLASHBACK DATABASE, then the flashback cannot be performed because of the corrupted log. A restore and an incomplete recovery must be performed instead.