Database Reference
In-Depth Information
The output of the code in Listing 6-36 is as follows:
Dealers and Their Cars
======================
Dealer: Luxury Auto World
2014 Blue BMW 310i
Dealer: Southtown Toyota
2014 Blue Toyota Tundra
Dealer: All Cities Toyota
2014 Green Toyota Camry
6-13. Applying Conditions on a Base Entity
Problem
You want to derive a new entity from a base entity that currently exists in a model and continue to allow the base
entity to be instantiated.
Solution
Let's assume that you have a model like the one shown in Figure
6-20
.
Figure 6-20.
Our model with the Invoice entity
