WebConsider the relation R(A, B, C, D, E) and the following functional dependencies: AB --> C. CD --> E. DE --> B. Answer the following: 1) Is AB a candidate key? 2 ... WebMar 22, 2024 · The correct answer is 8.. Concept: The given data, Given three functional dependencies, AB → C. BC → D. C → E. Finding the key of the relation, Compute … ea and gsa contract extension 2023 WebOpenOffice Base is an example of a database. False. Data modeling includes several models. Which model of data modeling includes the lowest level of abstractions? Physical model. "A student can attend six courses, each with a different instructor. Each instructor has 30 students." What is the type of relationship between students and ... WebAB \textit{AB} AB is not \textbf{is not} is not a candidate key of relation R because a candidate key should functionally determine values of all attributes of a relation and the … ea and ga posts http://openclassroom.stanford.edu/MainFolder/courses/cs145/old-site/docs/backup/reldesign-exercises.html WebQuestion: (4 points) Consider the relation R(A,B,C,D,E,F) and the set of functional dependencies F = {AB → C,A → D,D → . ) → EF} (F is a minimal cover already ... ea and gsa contract extension 2022 Web1. Consider relation R(A,B,C,D,E) with functional dependencies AB → C, BC → D, CD → E, DE → A, and AE B. If we project R onto the relation S(A,B,C,D), that is ...

WebHere you can find the meaning of Consider a relation R(A,B,C,D,E) with the following functional dependencies:ABC → DE andD → ABQ.The number of superkeys of R is:a ... Web2 attributes where one set can accurately determine the value of other sets it is denoted as x y where x is a set of attributes that is functional dependency in dbms ... class 9 hindi chapter 13 question answer sparsh WebQ1. Given a relation scheme R (x, y, z, w) with functional dependencies set F = {x → y, z → w}. All attributes take single and atomic values only. A. Relation R is in First Normal FORM B. Relation R is in Second Normal FORM C. Primary key of R is xz Choose the correct answer from the options given below : Q2. WebMay 3, 2016 · Repeat until all relations are in 4NF. Pick any R' with nontrivial A -» B that violates 4NF Decompose R' into R_1 (A, B) and R_2 (A, rest) Compute functional dependencies and multivalued dependencies for R_1 and R_2 Compute keys for R_1 and R_2. I see two ways to decompose the relations: start with A -» B or B -» D. Starting … ea and gsa online application WebFeb 8, 2016 · A->B A->C A-D BC -> D BC -> E B->D D->A. 2 removing extraneous atts: BC -> D is reduced to B->D and BC -> E is reduced to B->E since C is extraneous in both. 3 … class 9 hindi chapter 13 question answer seba WebAug 25, 2024 · Here, as we can see that in the relation R, sno. is denoted by A, sname is denoted by B, age is denoted by C, cno. is denoted by D, cname is denoted by E, group is denoted by F. According to the definition of the first normal form , there should not be any partial dependencies of the non-prime attributes on the prime attributes.

WebNov 1, 2016 · So that leaves me with AB -> C and BC -> D I can not figure out how to determine the correct answer from my current though process. functional … class 9 hindi chapter 14 pdf WebNov 5, 2024 · The correct answer is option 1.. Concept: Natural Join (* or ⋈): Natural Join (⋈) We can perform a Natural Join only if there is at least one common attribute that exists between two relations. In addition, the attributes must have the same name and domain. Natural join acts on those matching attributes where the values of attributes in both the … class 9 hindi chapter 14 question answer pseb