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in Databases by Active (1.4k points) | 46 views
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D will be answer
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Why not option C?
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It is in 3NF AB , BD and BC are keys
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Option C is wrong
 
Here C.k. 's are AB, BD, BC

Now check

AB--> CD ARE IN BCNF
AB--> AC ARE IN BCNF
C--> D ARE IN 3NF

SO OVERALL IN 3NF

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