| ERROR | datafile string cannot be recovered |
| CAUSE | Incremental backups or archived redo logs needed to recover the datafile cannot be found, and no recoverable full backup or datafile copy exists. |
| ACTION | Use the LIST command to see if there is a backup set or datafile copy that can be made AVAILABLE. If not, then the datafile is unrecoverable. If a full or datafile copy exists, then a Point-in-Time Recovery may be possible. |