Consider a relation schema over the attributes ABCDEFG and the following MVDs:
ABCD DEFG
CD ABCEFG
DFG ABCDEG
Find a lossless decomposition into 4NF.
Use the ?rst MVD to obtain the following decomposition: ABCD, DEFG. The second MVD still applies to ABCD and decomposes it into CD, ABC . The third MVD applies to DEFG and decomposes it into DFG, DGE.Thus,theresultisCD, ABC , DFG, DGE.
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