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What are composite attributes? Composite attributes can be separated in to sub parts.
explain the level architectures of the database management system
How can Redundant Associations be done It can be done by asking questions: i) Is there a specific arrangement of network which would optimize critical aspects of completed
Explain nested relations? Nested relations The assumption of INF is a natural one in the bank examples we have considered. However, not all applications are best modelled
QUESTION (a) Consider a car database consisting of car model, car make, car origin, Engine capacity, color, cost.
Define Outer join Outer join - If there are any type of values in the one table that do not have corresponding value(s) in the other, in an equi-join which will not be selected
what is er digram given that example of hospital,bank and library er digram.
What is a relationship called when it is maintained between two entities? A relationship is called Binary relationship when it is maintained between two entities.
Explain weak and strong entity type ? Weak and Strong entity type: An entity set which does not have a primary key is referred to as a weak entity set. The existence of a wea
Drawbacks of Database systems ?
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