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Draw entity relationship diagram for the following scenario.
A university has many departments whereas each department belongs to that particular uni. That uni has also many buildings whereas each building belongs to that particular uni . The uni has also many employees whereas each employee belongs to that particular uni. Every employee has only one parking space whereas each parking space belongs to only one employee.
Department offers many study programs whereas each program by only a single department.
For the relations R and S given below: R S A B C 1 4 7 2 5 8 3 6 9
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
explain exhaustively the problems associated with ER diagrams. include illustrations in your answer
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describe objectivde of file organisation
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