ORA-00295: datafile/tempfile number string is invalid, must be between 1 and string
What triggered the Error:
An invalid file number was specified.What should we do to fix it:
Specify a valid datafile or tempfile number and retry the operation.
If this was not sufficient go over to:
Oracle Official Support Knowledge Center
Or maybe those geeks at: StackOverflow Board
Or maybe those geeks at: StackOverflow Board