Database - The Relational Model and Normalization - Discussion

Discussion Forum : The Relational Model and Normalization - General Questions (Q.No. 1)
1.
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 → B.
A → C.
A → (B,C).
(B,C) → A.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
23 comments Page 3 of 3.

Shrav said:   1 decade ago
A can uniquely identifies B each time so A->B

Aani said:   1 decade ago
Because of logical signs properties.

Abhishek tamrakar said:   1 decade ago
Beacause only value of A will match with B.

So A->B is true.


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