Consider the following relation with functional dependencies as shown below. R{sno, sname, age, cno, cname, group} R(A, B, С, D, E, F} A → B, C C> F D>E In which normal form is the relation R is in ? (A) First normal form (B) Second normal form (C) Third normal form (D) Boyce Codd normal form

Q: How do we decompose this relation to solve this problem?

A: An entity is an object in the real world with an independent existence that can be differentiated…

Q: Consider the relation schema R (A, B, C, D, E). Find number of super keys if A, CD and BE are the…

A:

Q: QUESTION 6 There will be three tables after converting the following conceptual diagram into the…

A: 6)  Answer :-- False It will converted into two table table A with two fields named field1 and…

Q: Consider the relation R = {A, B, C, D, E, F, G, H, I,J} and the set of functional dependencies F = {…

A: f ={     AB → C,      A → D,      B → F,  F → GH,  D → IJ   } To find the key check the RHS of the…

Q: |A--→ BC, C---→D for relation R? es, why? If no, please nd Dependence Prese

A: For finding the key of relation R, Step 1 - Search the attributes which are not in right hand side…

Q: (7) Consider the following relation for published books: BOOK (Book_title, Author_name, Book_type,…

A: Here key for the given relation is {BookTitle, Author Name} The FD  BookTitle -> Publisher,…

Q: Consider the following functional dependencies for a relation R(A, B, C, D) A -> (B, C, D), (A, D)…

A: Given relation with functional dependencies is: R(A, B, C, D) A -> (B, C, D), (A, D) -> (B, C)…

Q: 1. Given each relation write down the properties that the relation has. If the relation does not…

A: Below is the answer with explanation:

Q: Consider the relation R with the following functional dependencies: R(P,Q, R, D, E, F) FD = {P >…

A: Given: Relation R with the following functional dependencies: R(P,Q, R, D, E, F) FD = {P > Q,QR →…

Q: 5. Consider a relation R(A, B, C, D, E) with the following dependencies: AB → C, CD → E, DE → B

A: Given:  Consider the relation R(A,B,C,D,E) with the following dependency: AB -> C  CD -> E  DE…

Q: Consider the following relation with set of functional dependencies R(ABCDEF) ABC->D, ABD->E, CD->F,…

A: Explanation: Find the closure set of all the options given. If any closure covers all the attributes…

Q: dentify the set of functional dependencies in the relation instance CAR shown n

A: Actually, data base is used to stores the data.

Q: Now start with these functional dependencies: АВ > Е C → D F → GH FG → GH В > FG Find a minimal…

A: A) AB ->E, C->D, F->GH, FG->GH, B->FG Here in FD FG->H, we can delete G from RHs…

Q: In the following, assume that A = {a,b,c,d} and that R : A ↔ A. Determine whether each relation is…

A: These are the some important term which are used to derive the following properties:-

Q: We have the following relation: Subscriptions(ID, startingdate, length, customerID, customerName,…

A:

Q: Consider a relation R={A,B,C,D,E,F,G,H,I} with the set of functional dependencies and determine,…

A: Now we must determine the above definition whether for each FD. Each value is super key or not on…

Q: A transitive dependency is equivalent to which of the following?A) A functional dependency between…

A: Transitive dependencyA transitive dependency in a database is an indirect relationship between…

Q: Consider a relation with schema R(A,B,C,D,E,F,G). Choose the key for the relation for the following…

A: According to the question we need to consider a relationship with schema R(A, B, C, D, E, F, G).…

Q: A functional dependency between two (or more) nonprimary key attributes in a relation defines a…

A: Please give positive ratings for my efforts. Thanks.   ANSWER   If there are no functional…

Q: A decomposition of a relation R into Rị and R2 is dependency preserving, if - (a) R can be…

A: Answer: The correct option is “(d) All of them”

Q: Question 6. Consider the relation R(ABCDE) and its functional dependencies set {AB->C, C->E, B-> D,…

A: Answer of the given question: choice (d) is the correct answer.  Lossless Decomposition:  Lossless…

Q: Given the relation R(A, B, C, D, E, F), the following functional dependencies exist: B --> C, D D…

A: Given : R(A, B, C, D, E, F) B --> C, DD --> F

Q: Given a relation with underlined key attributes as below A B 1 7 9. 2 7 10 11 4 8 11 5 7 10 •…

A: All functional dependencies from the given relation is A -> B A-> C C -> B The given…

Q: Consider the following relation with functional dependencies as shown below. R{sno, sname, age,…

A: Answer to the given question: choice(a) First Normal Form The given relation will be in first normal…

Q: Consider the depicted state for relation R in the table below: C y 2. Which of the following…

A: Correct regarding functional dependencies in given relation R

Q: 1. Consider the following relation that involves student data: GRADE (ClassName, Section, Term,…

A:

Q: Consider the relation R = {A, B, C, D, E, F, G, H, I,J} and the set of functional dependencies F = {…

A:

Q: Define a relation prereq depth(course id, prereq id, depth) where the attribute depth indicates how…

A: The CTE name is given as 'prereq depth' with attributes prereq id, course id, and depth, where depth…

Q: List all nontrivial functional dependencies satisfied by the relation of Figure7.18.

A: Given: List all nontrivial functional dependencies satisfied by the relation of Figure7.18.

Q: What is the highest normal form for the following relation and its functional dependencies? Assume…

A: A(x , w ,z) x->w functional dependency  is a relationship between two attributes, typically…

Q: Consider the following relation with functional dependencies as shown below. R{sno, sname, age, cno,…

A: Given dependencies are: A -> B, CC -> FD -> E Given relation: R(A, B, C, D, E, F)   Since…

Q: Multivalued dependencies are avoided in relation schema when the relation schema conforms to – (a)…

A: Answer: Multivalued dependencies are avoided in relation schema when the relation conforms to 4NF.…

Q: Consider the following relation: r (A1, A2, A3). For all the states of the relation, the result of…

A: Query : database query is a request for data from a database. Primary key :  Primary key constraint…

Q: Consider the following relation that involves student data: RADE (ClassName, Section, Term, Grade,…

A: Primary key for the given relation is (ClassName, Section, Term, StudentID)  Here the functional…

Q: Consider the following relation with functional dependencies as shown below. {{sno, sname, age, cno,…

A: We are given a relation R with functional dependencies and attributes as A,B,C,D,E,F . We are going…

Q: Consider the Relation R4 = (A,C,B,D,E,F), with Functional Dependencies: A -> B, C -> D, E -> D. What…

A:

Q: QUESTION 6 Consider the following functional dependencies for a relation R(A, B, C, D) A -> (B, C,…

A: A super key whose any proper subset is not super key is called candidate key.   closure table : (A)+…

Q: If lossless-join and preserving functional dependencies in relations are required, what is the best…

A: 3NF is the best normalization that is able to be always met, if lossless-join and preserving…

Q: Authorname, Book_type, Listprice, Author_affil, Publisher) Author_affil refers to the affiliation of…

A: (a) Explanation: =>Let say relation BOOK =R, Book_title = A, Author_name = B, Book_type = C,…

Q: Which of the following functional dependencies are satisfied (and not satisfied) by this relation…

A: Here in this question we have given. Stones FDs and we have asked that which of the following FDs…

Q: Write a relation algebra based on the following algebra: Book (BookID, Price, Year, Author,…

A: Relation algebra uses operators to perform the query. It provides the theoretical foundation for…

Q: Question 1: Map the following ER diagram into a relation schema. Show the different constraints. r1…

A: For the given ER diagram , we are going to map it into relation schema .  I have done it step-wise…

Q: ideas 9. Suppose relation R(A,B,CD) has the following functional dependencies 1-B, B- C, BC A, A D,…

A: The answer is

Q: Consider the following relation T: T( A, C, F, G, K, L) Key of relation T is AF Suppose the…

A: We are given a relation T with FDs. We have to check whether relation is in 3NF or not and if not…

Q: Consider the following relation with functional dependencies as shown…

A: Given relation is in First normal form

Q: Consider a relation with schema R(A,B,C,D,E,F,G). Choose the key for the relation for the following…

A: Given set of Functional Dependency :  A --> B B --> C C --> D D --> E E --> F F…

Q: Consider the relation R = (A, B, C, D, E, F, G, H, I, J} and the set of functional dependencies F…

A: For this problem, we must get all the keys. For this, we must check all the attributes which are…

Q: the above relation (with proper steps followed). b) Identify which normal form this relation is in

A: Given functional dependencies as, R(ABCDEF)AB->CD, CD->EF, BC->DEF, D->B, CE->F

Q: Please answer question 2

A: The domain constraint would be violated since the number is not allowed in the place of a name. The…

Normalization

Normalization is the process of eliminating redundancy in a database by organizing the data into several smaller tables. The large tables are normalized (converted) into smaller tables by using normalization rules, so that a database administrator can easily handle them. It also eliminates insertion, deletion, and update anomalies.