Let ra bc d be a relation and suppose it contains the
Find the keys:-
Let R(A, B,C, D) be a relation and suppose it contains the following dependencies: A → B, BC → D, and D → A.
(a) Find all super keys of R.
(b) Find all keys of R.
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find the keys- let ra bc d be a relation and suppose it contains the following dependencies a rarr b bc rarr d and d
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