The objects created using the database Objects and Extensibility features
occupy the same role as the table in a standard relational model: the object is a template
for the creation of individual ???instances??? of the object, which take the same
The Promise of Code Reuse
Although a number of object-oriented approaches and technologies have been introduced
since the 1980s, many of the promised improvements in software development
efficiency have largely been unrealized. One of the reasons that these productivity
improvements have failed is the difficulty many developers have had in making the
adjustment to building reusable components. In addition, the need to learn new languages
(such as C++) and technologies (object-oriented databases, CORBA, DCOM,
and .NET) slowed the adoption of object-oriented development. Developers did
become more familiar with these techniques and skills as Java moved into the mainstream
of development. Interestingly, Oracle leverages many of these object features
itself in development of new database capabilities.
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