Given the Relation X Below


X $\begin{array} { l l l } \mathrm { A } & \mathrm { B } & \mathrm { C } \\\hline 2 & 5 & 7 \\3 & 3 & 3 \\4 & 4 & 2 \\5 & 2 & 8\end{array}$

question 3

Multiple Choice

Given the relation X below


X: $\begin{array} { l l l } \mathrm { A } & \mathrm { B } & \mathrm { C } \\\hline 2 & 5 & 7 \\3 & 3 & 3 \\4 & 4 & 2 \\5 & 2 & 8\end{array}$
What value will be retrieved by the following query?
TEMP ? SELECT from X where B = C
RESULT ? PROJECT B from TEMP

• A) 2
• B) 3
• C) 4
• D) 5

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Definitions:

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