Given a relation and asked to enumerate all FD's and mark the trivial FD's
Given a relation R(A,B,C) and a FD set (A->B, B->C), find the FD Closure. Enumerate all the FD's and organize them accordingly to the LHS of the FD's. Mark all the trivial FD's.
I am a little confused with the second part of the question and don't understand what exactly they mean by "organize them accordingly to the LHS of the FD's"
My understanding is, Apart from the given FD's, we have A->C(on account of transitivity) and the trivial FD's will be A->A , B->B, C->C, A->AB, A->AC, B->BC. Is this the answer to the given question or am I missing something here?
database functional-dependencies
asked Nov 26 '18 at 14:12
Jerrico KyleJerrico Kyle
238
add a comment |
Given a relation R(A,B,C) and a FD set (A->B, B->C), find the FD Closure. Enumerate all the FD's and organize them accordingly to the LHS of the FD's. Mark all the trivial FD's.
I am a little confused with the second part of the question and don't understand what exactly they mean by "organize them accordingly to the LHS of the FD's"
My understanding is, Apart from the given FD's, we have A->C(on account of transitivity) and the trivial FD's will be A->A , B->B, C->C, A->AB, A->AC, B->BC. Is this the answer to the given question or am I missing something here?
database functional-dependencies
asked Nov 26 '18 at 14:12
Jerrico KyleJerrico Kyle
238
add a comment |
Given a relation R(A,B,C) and a FD set (A->B, B->C), find the FD Closure. Enumerate all the FD's and organize them accordingly to the LHS of the FD's. Mark all the trivial FD's.
I am a little confused with the second part of the question and don't understand what exactly they mean by "organize them accordingly to the LHS of the FD's"
My understanding is, Apart from the given FD's, we have A->C(on account of transitivity) and the trivial FD's will be A->A , B->B, C->C, A->AB, A->AC, B->BC. Is this the answer to the given question or am I missing something here?
database functional-dependencies
asked Nov 26 '18 at 14:12
Jerrico KyleJerrico Kyle
238
Given a relation R(A,B,C) and a FD set (A->B, B->C), find the FD Closure. Enumerate all the FD's and organize them accordingly to the LHS of the FD's. Mark all the trivial FD's.
I am a little confused with the second part of the question and don't understand what exactly they mean by "organize them accordingly to the LHS of the FD's"
My understanding is, Apart from the given FD's, we have A->C(on account of transitivity) and the trivial FD's will be A->A , B->B, C->C, A->AB, A->AC, B->BC. Is this the answer to the given question or am I missing something here?
database functional-dependencies
database functional-dependencies
asked Nov 26 '18 at 14:12
Jerrico KyleJerrico Kyle
238
asked Nov 26 '18 at 14:12
Jerrico KyleJerrico Kyle
238
asked Nov 26 '18 at 14:12
Jerrico KyleJerrico Kyle
238
asked Nov 26 '18 at 14:12
Jerrico KyleJerrico Kyle
238
asked Nov 26 '18 at 14:12
Jerrico KyleJerrico Kyle
238
238
add a comment |
add a comment |
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