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Adding Redundant Associations for Efficient Access
The expression redundant association means using "duplicate association for proficient access". While analysis, it is not a good idea to have redundancy in association network since redundant associations do not add any information. During design, however, we should evaluate structure of the object model for implementation.
State The position of object at any moment is called state. An object can have many states depend upon time. After receiving some input instructions, the object can change its
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What is called an evaluation primitive? A relational algebra operation annotated with instructions on how to evaluate is known as an evaluation primitive.
what is Lossless-join decomposition
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DISADVANTAGES OF RDBMS
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