Question: Consider the following statements: 1. A functional dependency is checked by examining the instance of a relation. 2. The violation of a functional dependency is

Consider the following statements:

1. A functional dependency is checked by examining the instance of a relation.

2. The violation of a functional dependency is checked by examining the instance of a relation.

3. If an attribute has occurred on the RHS of some functional dependencies but not on the LHS of any functional dependency, it must be in the candidate keys.

Give reasons for each statement whether it is correct or incorrect. Give the reason even if it is correct.

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