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Full Dependency:
Given a relation R and functional dependency x->y (y is fully functionally dependent on x)there is no any z->y ,where Z is a proper subset of x
Partial Dependency:
If any proper subset of the key determine any of the non-key attributes then there exist a partial dependency p q->c d (p q is the primary key)
p->c
q->c
p->d
q->d
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Difference between cartesian product and full outer join?
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Details is discussed on http://arjudba.blogspot.com/2008/04/what-are-difference-between-ddl-dml-and.html
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