... allow you to uniquely identify every row in your database. One thing of interest here is that what might be considered a natural key in your database isoften not actually a natural key in the ... driver’s licensenumber of a person. In the example database, this is a number that every person has (or may needbefore inclusion in our database, perhaps). However, the value of the driver’s ... be mentioned in the logical design section of thisbook, but it is important to know of their existence, since they will undoubtedly still crop up in some logicaldesigns. A typical flame war...