Recent questions tagged goclasses-da-dpp-day-274

Consider $R(A,B,C,D,E)$ with $F=\{A\to DE,\ BE\to C,\ D\to B,\ C\to A\}$.The relation is decomposed into $R_1(A,B,C)$ and $R_2(A,D,E)$.Which of the following statements a...

Consider $R(A,B,C,D,E,F)$ with $F=\{C\to D,\ A\to B,\ B\to EF,\ F\to A\}$.Suppose $R$ is decomposed into $R_1(A,B,D,E)$ and $R_2(A,B,C,F)$. The decomposition is currently...

Consider the binary decomposition$R(A,B,C,D)\to R_1(A,C,D),R_2(B,C)$.Which of the following statements are correct?If $C$ is a candidate key for $R_1$, the decomposition ...

Consider $R(A,B,C,D)$ with $F=\{B\to C,\ D\to A\}$.The relation is decomposed into $R_1(B,C)$ and $R_2(A,D)$.Which of the following statements are correct?The decompositi...

Consider $X(A,B,C,D,E,F)$ with $F=\{AB\to CD,\ CD\to EF\}$.The relation is decomposed into $X_1(A,B,C,D)$ and $X_2(C,D,E,F)$.Which statement is correct?The decomposition ...