Congestion-Control
October 16, 2023Subnetting
October 16, 2023Database-Management-System
|
Question 405
|
If D={R1,R2} is a decomposition of R, and F is the set of functional dependencies on R, then which of the following ensures that the decomposition D is lossless (nonadditive)?
|
((R1∩ R2) →(R1-R2)) ∈ F+
|
|
|
((R1 ∩R2) → (R1 – R2)) ∉ F+
|
|
|
((R1 ∪ R2) →(R1 – R2)) ∈ F+
|
|
|
((R1∩R2) →R1 ) ∈ F+
|
Question 405 Explanation:
Correct Answer: A
Question 405 Explanation:
Subscribe
Login
0 Comments