Consider a relation R=(M, N, O, P, Q) with the dependencies: {M,N ->O; O,P->Q ; P, Q-> N}. The key for relation R is :a.M, N, Ob.M, N, Pc.N, O, Pd.M, N

Question

Consider a relation R=(M, N, O, P, Q) with the dependencies: {M,N ->O; O,P->Q ; P, Q-> N}. The key for relation R is :a.M, N, Ob.M, N, Pc.N, O, Pd.M, N
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Solution 1

To find the key for the relation R, we need to find the minimal set of attributes that can determine all other attributes in the relation.

Step 1: Find the closure of each attribute set on the left side of the functional dependencies.

  • Closure of {M, N} is {M, N, O, Q} (using M,N ->O and O,P->Q Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study prob
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solv

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