Beyond the Relational Model

Although RDBMSs have been widely accepted for use in typical business applications, such as inventory control, patient management, banking, order processing, and event scheduling, they have proven to be (currently, at least) lacking for such applications as computer-aided design (CAD), geographic information systems (GIS), and multimedia storage systems. Two new database models eventually emerged in response to this problem: the object-oriented database and the object-relational database.

The object-oriented model incorporates all of the characteristics of an object-oriented programming language and essentially relegates the relational database to the status of a data store. The fundamental idea here is that the ...

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