Chapter 10. A Single-User Example
Many database applications process records having dozens or even hundreds of fields. An application’s main record may have links to dozens of detail records, each holding hundreds of its own fields and an unlimited number of records.
Even the simplest possible order fulfillment system must have a Customers table and an Orders table. Information for a customer could include any number of orders, each containing any number of order items. A more complex application might include other tables listing customer addresses, contacts, areas of operation, and more elaborate order tracking information.
When an application needs to display a large number of fields, it cannot simply place each in its own text box because ...
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