ORA-19620
file is not of type type
- file: The specified file to backup.
- type: The supported file type.
Cause
When opening the file either to be placed in a copy or backup set, to be inspected, or used as the target for an incremental restore, the header is not recognized as a valid file header for a file of the indicated type (data file, archived log, or control file) belonging to the current database.
Action
The indicated file cannot be processed. Ensure that the correct files are being specified for the copy or backup operation.