21. In a relation, the order of the rows matters. A. True B. False Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
22. In a relation, the rows are sometimes called "records". A. True B. False Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
23. A relation is a two-dimensional table. A. True B. False Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
24. Any table that meets the definition of a relation is said to be in first normal form. A. True B. False Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
25. Given the functional dependency R → (S,T) , then it is also true that R → S. A. True B. False Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
26. A candidate key is a determinant that determines all the other columns is a relation. A. True B. False Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
27. The only reason for the existence of relations is to store instances of functional dependencies. A. True B. False Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
28. A relation is in 5NF when multivalued dependencies are isolated in their own relation. A. True B. False Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
29. The functional dependency R → S means that the value of S can be determined when we are given a value of R. A. True B. False Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
30. In a relation, the columns are sometimes called "attributes". A. True B. False Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board