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r Consider the relation R (ABCDE) with following functional dependencies (FDs): J = {A rightarrow B, BC rightarrow D, D rightarrow BC, C rightarrow A}
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Consider the relation R (ABCDE) with following functional dependencies (FDs): J = {A rightarrow B, BC rightarrow D, D rightarrow BC, C rightarrow A} Identify the candidate key of this relation. Suppose the relation is decomposed into, R1 (AB) R2 (BCD) Does this decomposition have a lossless join? Justify your
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Securing SQL Server Protecting Your Database From Attackers
Authors: Denny Cherry
2nd Edition
1597499471, 978-1597499477
