Database Reference
In-Depth Information
Products
This final submodel contains all the details about the products sold
and the product vendors.
■
Inventory
This submodel contains all the details about the company's physical
inventory.
■
Orders
All entities related to orders, payments, and customers exist in this
submodel.
■
Web Session
These entities allow us to implement a Web shopping cart to save
orders in progress.
■
Lists
This small submodel contains the two entities used to implement a
lookup list.
■
As you can see in Figures 9.1 and 9.2, showing the complete logical
model versus a submodel, the smaller submodel makes it easier to view
and work with the entities.
F
IGURE
9.1
The complete Mountain View Music logical model
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