How to fix the Oracle error ORA-01257: cannot reuse database file string, unknown file size?

In this post, you’ll learn more about the Oracle ErrorORA-01257: cannot reuse database file string, unknown file size with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-01257: cannot reuse database file string, unknown file size

Reason for the Error ORA-01257: cannot reuse database file string, unknown file size

The size of the raw partion cannot be determined

How to fix the Error ORA-01257: cannot reuse database file string, unknown file size ?

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

Add the datafile/logfile by specifying the size parameter.