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What are the two distinct aspects to the implementation of associations?
i) It is required to define data declarations which will enable details of actual links to be stored. It will comprise of defining data members in one class which can store references to objects of associated class.
ii) It is necessary to consider means by which these pointers will be manipulated by the rest of application. The details of underlying implementation of association must be hidden from client code.
Define a property that is not a property of transactions? Ans: Concurrency is not a property of transactions
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Question 1: a) What is the difference between a non-impact and impact printer? b) Which type of printer is generally used in a supermarket to print your receipt? Describe
What is the full form of DDL? DDL is stand for Data Definition Language.
10A.53 Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department. 10A.54 Code an Oracle Database trigger to allow the
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Write short note on Events Events consist of inputs, interrupts, decisions and actions performed by any external device or users. Every event always has a sender and receiver.
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