Consider a relation with seven attributes ABCDEGH. The following dependencies are given:AB -> C, AC -> B, AD -> E, B -> D, BC -> A, E -> GWhat is the key?
Question
Solution 1
To find the key of the relation, we need to find an attribute or a set of attributes that can determine all other attributes. This means that the key attribute(s) is on the left side of a functional dependency and all other attributes can be derived from it.
- Start with all attributes: ABCDEGH
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