Database Reference
In-Depth Information
Figure 2.15. A simple model showing band members and a recorded album
One problem with this model is that bands sometimes change their members. In order to
handle changes like this, you may need to create intermediate nodes that represent a state
of affairs at a certain time. You could introduce lineup nodes representing the membership
of a band at the point when a particular album was recorded, as in
figure 2.16
.
