How to fix the Oracle error ORA-01200: actual file size of string is smaller than correct size of string blocks?

In this post, you’ll learn more about the Oracle ErrorORA-01200: actual file size of string is smaller than correct size of string blocks with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-01200: actual file size of string is smaller than correct size of string blocks

Reason for the Error ORA-01200: actual file size of string is smaller than correct size of string blocks

The size of the file as returned by the operating system is smaller than the size of the file as indicated in the file header and the control file. Somehow the file has been truncated. Maybe it is the result of a half completed copy.

How to fix the Error ORA-01200: actual file size of string is smaller than correct size of string blocks ?

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

Restore a good copy of the data file and do recovery as needed.