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Consider the relation R = {A, B, C, D, E, F, G, H, I, J} and the set of functional dependencies: G
= { {A, B} -> {C}, {B, D} -> {E, F}, {A, D} -> {G, H}, {A} -> {I}, {H} -> {J} } What is the
key for R? Decompose R into 2NF and then into 3NF relations. Must start by drawing a schema
with all of the attributes and draw the functional dependencies!
Do not use Armstrong Axiom.
Thanks

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Consider the relation R = {A, B, C, D, E, F, G, H, I, J} and the set.pdf

  • 1. Consider the relation R = {A, B, C, D, E, F, G, H, I, J} and the set of functional dependencies: G = { {A, B} -> {C}, {B, D} -> {E, F}, {A, D} -> {G, H}, {A} -> {I}, {H} -> {J} } What is the key for R? Decompose R into 2NF and then into 3NF relations. Must start by drawing a schema with all of the attributes and draw the functional dependencies! Do not use Armstrong Axiom. Thanks