Recent questions tagged goclasses-da-dpp-day-276

3 3 votes
1 1 answer
128
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Consider $R(A,B,C,D,E,F,G,H,I,J)$ with $F=\{AB\to CD,\ D\to EFG,\ FG\to H,\ A\to I,\ AB\to EG,\ AI\to IJ\}$. The candidate key is $AB$.Which of the following is a valid $...
3 3 votes
1 1 answer
97
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Consider $R(A,B,C,D,E,F,G,H,I,J)$ with $F=\{AB\to C,\ A\to DE,\ B\to F,\ F\to GH,\ D\to IJ\}$. The candidate key is $AB$.Which of the following is a valid $\text{2NF}$ de...
2 2 votes
1 1 answer
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After representing the attributes atomically, consider $\text{Inventory(PartNbr, Warehouse, Location, QOH, Weight, PartColor)}$ with $\text{PartNbr} \to \text{Weight, Par...
2 2 votes
1 1 answer
92
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Consider $R(A,B,C,D,E)$ with $F=\{A\to E,\ EC\to BD,\ D\to C\}$. The candidate keys are $AC$ and $AD$. Which decomposition correctly removes the $\text{2NF}$ violation?$R...
2 2 votes
1 1 answer
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94 views
Consider $\text{CLASS(CourseNo, SectionNo, RoomNo, Capacity)}$ with candidate key $\text{(CourseNo, SectionNo)}$ and functional dependency $\text{RoomNo} \to \text{Capaci...
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