Recent questions tagged chase-test

Consider $R(A,B,C,D,E,F,G,H)$ with $F=\{AB\to CD,\ AC\to DE,\ EF\to AG\}$.The decomposition is $R_1(A,C,D,E),$ $R_2(A,B,C),$ $R_3(A,B,F,G,H)$.Which statement correctly de...

Consider $R(A,B,C,D,E,F)$ with $F=\{A\to C,\ CE\to D,\ CD\to A,\ DF\to A\}$.The decomposition is $R_1(A,B,C,D),$ $R_2(A,D,E),$ $R_3(B,C,E,F)$.Which statement is correct?T...

Consider the relation $R(T,I,G,E,R,S)$ with $F=\{G\to ES,\ RT\to I,\ IR\to E\}$.It is decomposed into $R_1(T,E),$ $R_2(I,G),$ $R_3(I,E,R,S)$.What does the Chase Test conc...

Consider $R(S,N,C,P,X,Y,Q)$ with $F=\{S\to NC,\ P\to XY,\ SP\to Q\}$.The relation is decomposed into $R_1(S,N,C),$ $R_2(P,X,Y), $ $R_3(S,P,Q)$.Which statement is correct?...