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Given the relation R(ABCDEF) and the functional dependency set F = {B D, E F, DE, D B, F BD}. 1. Is the decomposition
Given the relation R(ABCDEF) and the functional dependency set F = {B D, E F, DE, D B, F BD}. 1. Is the decomposition ABDE, BCDF lossless? If not, what functional dependency could you add to make it lossless? 2. Is it dependency preserving? If not, what functional dependency could you add to make it dependency preserving?
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Lets analyze the decomposition of the relation RABCDEF into ABDE and BCDF and check if it is lossles...
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Fundamentals Of Database Systems
Authors: Ramez Elmasri, Shamkant Navathe
7th Edition
0133970779, 978-0133970777
