If it was deleted by a file system command that actually deleted relevant files, it might be possible to recover with an OS-specific file recovery tool, since deleting a file typically just deletes references to the stored data on the disk -- the data itself remains there until it gets overwritten by some new/modified file. That does depend though on that disk data not having been overwritten yet.
If it was deleted by some database transaction, if there's no backup in place and you don't have the transactions recorded anywhere (as alluded to above) . . .