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Explain how the associations are implemented as classes.
A general approach in this case is to transform an association class into a simple class linked to two original classes with the two new associations, as shown in Figure.
Figure: Transforming the association into a class
explain exhaustively the problems associated with ER diagrams. include illustrations in your answer
East Coast Aquarium Relational Database
What is D command work in the respect of QBE? D: It is the command inside QBE to delete tuple(s) from the relation.
Illustrate the collaboration and relationship diagram A collaboration is the society of interfaces, classes and other elements which work together to provide some cooperative b
Removing a Synonym: DROP SYNONYM D30;
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Problem Explain at least five relational algebraic operators with a suitable example. Note: All the above descriptions should be done by taking at least two examples from ou
Write a program within embedded SQL to associative the total trip expenses of the salesman named ‘John' for the relations. EXEC SQL BEGIN DECLARE SECTION; long total_expenses;
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