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4. (40 points) Identify the following relations that are in Third normal form (3NF)? If it is in 3NF, is it in BCNF? You must

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AC-6-그candidate kes . ACDB -enu ie. yex Astibute | 卫is also notin BcNR. inN and alsoin BCNA Reason: AC is a suaske in 3Nf but

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