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 2 of 3.
Tarun V.Nair said:
1 decade ago
Its simple A->BC, so via split rule we can say A->B, A->C so option a is correct.
Pradeep said:
1 decade ago
Attribute A determines attributes B and C so,
A->BC, or A->B and A->C, in the three option only one option are given hence option a are right.
A->BC, or A->B and A->C, in the three option only one option are given hence option a are right.
Vahini said:
1 decade ago
I think answer is correct. By splitting A -> (B, C) to A ->B, A ->C.
Nitish said:
1 decade ago
The question is saying that A determines both B and C. But no option suggest that A is determining C.
Really have no idea what should be the correct answer?
Please suggest the correct answer with reason.
Really have no idea what should be the correct answer?
Please suggest the correct answer with reason.
Debobrata said:
1 decade ago
Apply Decomposition rule on A -> (B, C) we get A -> B and A->C.
Rupesh said:
10 years ago
Solution of this question is not right. According to your question an attribute A determines both B and C, then answer must be A->B, A->C or A->(B, C) or A->BC.
Karan said:
9 years ago
If attribute A determines both attributes B and C then answers will be:.
A -->B, A-->C.
A -->B, A-->C.
Prachi said:
9 years ago
There is a different between determines and determine of.
If determine of then B->A but here determines B and C so A->B.
If determine of then B->A but here determines B and C so A->B.
Rahul said:
9 years ago
Give brief explanation for option A.
Sreepada B l said:
9 years ago
Please explain, how option A is true.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers