Database - The Relational Model and Normalization - Discussion
Discussion Forum : The Relational Model and Normalization - General Questions (Q.No. 19)
19.
If attribute A determines both attributes B and C, then it is also true that:
Discussion:
22 comments Page 3 of 3.
Abhijit said:
9 years ago
Thanks @Kamlesh.
Rohit bhatia said:
7 years ago
@ALL.
Every time attribute A appears, it is matched with the same value of attribute B, but not the same value of attribute C. Therefore, it is true that:
A. A -> B.
B. A -> C.
C. A -> (B,C).
D. (B,C) -> A.
Answer: Option A.
So, How it's answer is same as above question? Please, anyone explain me.
Every time attribute A appears, it is matched with the same value of attribute B, but not the same value of attribute C. Therefore, it is true that:
A. A -> B.
B. A -> C.
C. A -> (B,C).
D. (B,C) -> A.
Answer: Option A.
So, How it's answer is same as above question? Please, anyone explain me.
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