How to fix the error ORA-00295: datafile/tempfile number string is invalid, must be between 1 and string?

In this post, you’ll learn more about the Oracle ErrorORA-00295: datafile/tempfile number string is invalid, must be between 1 and string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-00295: datafile/tempfile number string is invalid, must be between 1 and string

Reason for the Error ORA-00295: datafile/tempfile number string is invalid, must be between 1 and string

An invalid file number was specified.

How to fix the Error ORA-00295: datafile/tempfile number string is invalid, must be between 1 and string ?

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

Specify a valid datafile or tempfile number and retry the operation.