Question
Consider the relation R (ABCDE) with following functional dependencies (FDs): (25 points) J = {A B, BC D, D BC, C A} A) Identify the
Consider the relation R (ABCDE) with following functional dependencies (FDs): (25 points) J = {A B, BC D, D BC, C A} A) Identify the candidate key of this relation. B) Suppose the relation is decomposed into, R1 (AB) R2 (BCD) Does this decomposition have a lossless join? Justify your answer
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Object Databases The Essentials
Authors: Mary E. S. Loomis
1st Edition
020156341X, 978-0201563412
