I have a question regarding differential datbase backup.As from books online differential datbase backup records only the data that has changed since the last database backup.Suppose I just inserted only one row since the last full database backup.Does this differential datbase backup takes or backups only one row that I inserted.
As per differential backup schedule to run, yes it will. it will back every think form last known full backup to the current & then follows as your differential backup goes on.