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application
Server
super PC or minicomputer running the DBMS
Network
hardware that connects the client and server machines. 1. Client/Server Environment
2. Object-Oriented Programming
3. Event-Driven Programming
4. Graphical User Interface
5. Relational Databases
6. PowerBuil
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object-oriented feature whereby one class definition incorporates all or part of another class definition to allow reuse of common features across descendent objects.
An inheritance hierarchy generally includes base, abstract, and concrete classes.
A well-designed nonvisual user object hierarchy i
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