CH 15: Relational Database Design Algorithms and Further Dependencies What is meant by the closure of a set of functional dependencies? Illustrate with an example. What is meant by attribute preservation condition on decomposition?

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CH 15: Relational Database Design Algorithms and Further Dependencies What is meant by the closure of a set of functional dependencies? Illustrate with an example. What is meant by attribute preservation condition on decomposition? What type of constraints are inclusion dependencies meant to represent? Why is the domain key normal form (DKNF) known as the ultimate normal form? RELATIONAL DATABASE DESIGN ALGORITHMS and FURTHER DEPENDENCIES What is the difference between primary and secondary storage? What characterizes the levels in RAID organization? What is the function of a buffer manager? What does the buffer manager do to serve a request for data?

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