esses as pointers. When the application wants to fetch a record,
the database system uses the address to fetch exactly the right string
of bytes from the disk. This requires only a single disk access in all
cases. Other systems, by contrast, often must do more than one disk read
to find a particular record.</p>
        <p>The key advantage of the network model is also its main drawback. The
fact that pointer traversal is so fast means that applications that do
it will run well. On the other hand, storing po