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Recent questions tagged functional-dependency
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1
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61
UPPCL AE 2018:63
We have a database table with relational schema $\text{R(XYZPQ)}:$ ... dependency. $\text{Y} \rightarrow \text{X}$ is a functional dependency. None of the above $\text{YZ} \rightarrow \text{P}$ is a functional dependency.
We have a database table with relational schema $\text{R(XYZPQ)}:$$$\begin{array}{|c|c|c|c|c|} \hline \text{X} & \text{Y} & \text{Z} & \text{P} & \text{Q} \\\hline \text{...
admin
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admin
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Jan 5, 2019
Databases
uppcl2018
databases
database-normalization
functional-dependency
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8
votes
2
answers
62
ISRO2015-20
Let $\text{R = (A, B, C, D, E, F)}$ be a relation scheme with the following dependencies $\text{C} \rightarrow \text{F, E} \rightarrow \text{A}, \text{EC} \rightarrow \text{D, A} \rightarrow \text{B}$. Which of the following is a key of $\text{R}?$ $\text{CD}$ $\text{EC}$ $\text{AE}$ $\text{AC}$
Let $\text{R = (A, B, C, D, E, F)}$ be a relation scheme with the following dependencies $\text{C} \rightarrow \text{F, E} \rightarrow \text{A}, \text{EC} \rightarrow \te...
go_editor
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go_editor
asked
Jun 17, 2016
Databases
isro2015
databases
database-normalization
functional-dependency
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