Mathematics, 13.06.2020 23:57, 250878

(4 points) A given relation R={A, B, C, D, E} is decomposed into two relations: R1={A, B, C, E}, R2={B, C, D} a. Based on the given set of FDs F={BàE, CEàA}, is the above decomposition a lossless-join decomposition? Why? b. Based on the given set of FDs F={EàD, BCàA }, is the above decomposition a lossless-join decomposition? Why?

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(4 points) A given relation R={A, B, C, D, E} is decomposed into two relations: R1={A, B, C, E}, R2=...