How to fix the Oracle error ORA-19683: real and backup block size of file string are unequal?

In this post, you’ll learn more about the Oracle ErrorORA-19683: real and backup block size of file string are unequal with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-19683: real and backup block size of file string are unequal

Reason for the Error ORA-19683: real and backup block size of file string are unequal

block size changed between backup & real file

How to fix the Error ORA-19683: real and backup block size of file string are unequal ?

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

use right backup