title: Consider the universal relation R = {A, B, C, D, E, F, G, H, I, J}. What is the key for R?
body: <p>Consider the universal relation R = {A, B, C, D, E, F, G, H, I, J}. What is the key for R?
  Decompose R into 2NF and then 3NF relations?</p>