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Fourth Normal Form (4NF)
When attributes in a relation have multi-valued dependency, further Normalization to 4NF and 5NF are needed. Let us first find out what multi-valued dependency is.
A multi-valued dependency is a typical type of dependency in which each and every attribute within a relation depends upon the other, yet none of them is a unique primary key.
Data slice explanation
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Which product produces the relation that has attributes of R1 and R2 ? Cartesian product produce the relation which has attributes of R1 and R2
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as a customer service employee explain five measures you would recommend to make even a displeased students patronize the school canteen
Define Atom of domain relational calculus An atom has the outline 1 , x 2 , ... , x n > -> r , in which r stands for a relation on n attributes and x 1 , x 2 , ... , x n ar
Assume that you are responsible for selecting a new DBMS product for Sohar Hospital
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