Problem 1 Convert the following relation to 2NF, and then to 3NF. Show both conversions. (h, n, c, a, f, k, p, r, g, i, m, b, o, d, j, I, s, e) Functional Dependencies: m, b →I n>o p>j h>g c>i h> d n→ j s >e p>o a >r
Q: Consider the following relation with set of functional dependencies R(ABCDEF) ABC->D, ABD->E, CD->F,…
A: In this question, we are given a relation with set of functional dependenciesR(ABCDEF)ABC->D,…
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: Given a relation R(P ,Q ,R ,S, T, U,V,W, X,Y) and functional dependency set FD =…
A: Given a relation R(P ,Q ,R ,S, T, U,V,W, X,Y) and functional dependency set FD =…
Q: Consider the following Relation (R) and its Functional dependencies. R(0, μ, y, α, B), {0, µ} → {a},…
A: Candidate key is Qu As per guidelines solve only first question please repost question as a…
Q: Let R(A,B,C,D,E,F,G) be a relation with the FDs: F= (CDG, DG-C, AD-G, G-A, AB-F). Consider the…
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Q: The relation R(A, B, C, D, E) has the following functional dependencies. А, В - С В, С -> D C, D→E…
A: Attached Solution for (a) and (b) part:
Q: Given the following relation schema R(B, N, O, A, T, C) and the set of functional dependencies F =…
A: F = {C-->OT, O-->AC, CN-->B, CB-->A, B-->N}: R(B, N, O, A, T, C)
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 relation R(O,P,X,Y,E, S); FDs={ O=P, XY=O, OE=S, EY=X, PY=X} What is the dependency…
A: Given Relation R contains attributes O, P, X, Y, E and S. The functional dependencies present in…
Q: Problem 3 Consider the relation R = {A, B, C, D, E, F,G, H, I, J} and the set of functional…
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Q: QUESTION 19 Eiven relation R(A, B, C, D, E, F, G, H, I, J) and the following set of function…
A: Given, AB -> C A -> DE F - > GH D -> IJ A+ (Closure) = ADEIJ Explanation: A -> A…
Q: Problem 1 Convert the following relation to 2NF, and then to 3NF. Show both conversions. (h, n, c,…
A: In this question, first, we find the 2NF. In 2NF, for relations where the primary key contains…
Q: Consider the relation R(A, B, C, D, E), and the decomposition of R into R1(ABC) and R2(ADE). (a)…
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Q: . Consider the following relation with set of functional dependencies R(ABCDEF) ABC->D, ABD->E,…
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Q: Question 1: FDs and Keys (a) Consider a relation schema R(A, B, C, D, E), and the set of…
A: Here in this question we have given a relation R. And also given set of functional dependenciesF =…
Q: Question 3. Suppose we have a relation R = (A, B,C, D, E , F) with a set of function ependencies F =…
A: A -> DE AC -> B B -> D Closure (AC) =(A, C, B, D, E) Since AC determines all the attribute…
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: Question 3. Consider the relation R(ABCD) with AB as a candidate key, choose the FD so that R should…
A: Consider the relation R(ABCD) with AB as a candidate key, choose the FD so that R should be in 2NF…
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: Consider a relation (p, q, r, s, t, u, v) with functional dependencies as given below: p>q r>s,t…
A: Defined candidate key for the given relational schema
Q: Consider a relation schema R = (X, Y, Z) on which the following functional dependencies hold: {XY →…
A: Here in this question we have given a relation schema R = (X, Y, Z) on which the following…
Q: Consider a relation schema R= (X, Y, Z) on which the following functional dependencies hold: {XY →…
A: Here in this question we have given a relation schema R = (X, Y, Z) on which the following…
Q: Given a relation R( P, Q, R, S, T, U, V, W, X, Y) and Functional Dependency set FD = { PQ → R, P →…
A: Given: a relation R( P, Q, R, S, T, U, V, W, X, Y) and Functional Dependency set FD = { PQ → R, P →…
Q: Consider the relation R = {A, B, C, D, E, F, G, H, I,J} and the set of functional dependencies F = {…
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Q: Consider the following set F of functional dependencies on the relation schema (A, B, C, D, E, G):…
A: Given a set of functional dependencies on a relational schema and we need to give a BCNF…
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 universal relation R (A, B, C, D, E, F, G} and the set %3! of functional dependencies F…
A: The Relation given is : R = { A, B, C,D ,E, F, G} And the functional dependencies are: B,C --> A…
Q: Consider a relation schema R = (X, Y, Z) on which the following functional dependencies hold: {XY →…
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Q: b) Given the relation R(W,X,Y,Z). We have the following functional dependencies: XY W, Y-Z, YW→X,…
A: The answer is handwritten as it include some table data .the answer is given below
Q: Answer the following questions about the relation R(a, b, c, d, e, f), with functional dependencies:…
A: Answer : R(a,b,c,d,e,f) a->f ab->cd c->e de->b bf->ae It not violate any normal…
Q: Question 2 1. Given R (A, B, C, D, E, F) and the following set of functional dependencies: F =…
A: As per our guidelines, we are supposed to answer only 1st three parts. kindly repost the remaining…
Q: Computer Science Given these two relational schemas and sets of functional dependencies: 1)…
A: Answer: I have given answered in the handwritten format in brief explanation
Q: Q2. Given a relation R( P, Q, R, S, T, U, V, W, X, Y) and Functional Dependency set FD = { PQ → R, P…
A: the answer is with full explaination is given below
Q: Given: 1. The universal relation schema Q(CTHRSG), where C = course, T = teacher, H = hour, R =…
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Q: Based on the following relational schema and functional dependencies, 1. Find (show all steps)…
A: Here attributes that are not available on the right side is, a) B,E Now find the closure of the BE…
Q: bu are given the following set of functional dependencies for a relation R= (A , B C,D,E,F), F=…
A: Key of relation,relation in BCNF and dependency preserving decomposition
Q: Consider a relation schema R = (X, Y, Z) on which the following functional dependencies hold: { XY →…
A: Here in this question we have given a relation schema R = (X, Y, Z) on which the following…
Q: 1. Consider the following relation with set of functional dependencies R(ABCDEF) ABC->D, ABD->E,…
A: ABC->D, ABD->E, CD->F, CDF->B, BF->D A) Closure(ABC) ={A, B, C, D, E, F} Therefore…
Q: 4. Decomposition- BCNF. Consider relation R=(ABCDEFG), F={AB>CD, CDE→AB, AG>BD, BDG>EF} (a) Is it in…
A: The candidate key is the set of attributes which is used to uniquely identify tuples in a table.…
Q: Consider a relation schema R(A,B,C,D,E,H,G) F = {A->BC, B->C, C->BED, BD-> E, E->D, AG->E, G->H,…
A: Answer is given below-
Q: Consider the relation R(A,B,C,D,E,F,G) with the following functional dependencies: A-CDE, B F.…
A: Given Data : Relation :- A,B,C,D,E,F,G Dependency :- A->CDE , B->F
Q: Consider a relation schema R = (X, Y, Z) on which the following functional dependencies hold: { XY -…
A: Here in this question we have given a relation schema R = (X, Y, Z) on which the following…
Q: All parts of this question use the relation R = (ABCDEG) with the set of functional dependencies F…
A: 1) The given relation is : R = (ABCDEG) The given set of functional dependencies F is : A→BC AD→G…
Q: nswer the following questions about the relation Rla, b, c, d, e, f), a -> f ab -> cd C->e de -> b…
A: A) Primary key is ab. a -> f violates 2NF since it's a partial FD ab -> cd : none c -> e…
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: You are given the following set of functional dependencies for a relation R= (A, B,C,D,E,F), F= (AB…
A: A) The functional dependency are AB->C DC->AE E->F The key for the given relation is set of…
Q: Consider a relation schema R = (X, Y, Z) on which the following functional dependencies hold: {XY -…
A: The answer of the question is given below:
Q: 2.For each of the following relations with given functional dependencies, @Calculate canonical cover…
A: NOTE: According to the rules, only question (a) is to be answered (i) Fc is called a canonical cover…
Want 3NF relations for the above EER Model in the hand written format below of an unrelated example:
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- Suppose we have a relational database with five tables.table key AttributesS(sid, A) SidT(tid, B) TidU(uid, C) UidR(sid, tid, D) sid, tidQ(tid, uid, E) tid, uidHere R implements a many-to-many relationship between the entities implemented with tables S and T, and Q implements a many-to-many relationship between the entities implemented with tables T and U.D. Suppose you replaced SELECT with SELECT DISTINCT in your queries from parts (a) and Could one of these modified queries return more records than the other? If so, which one? Justify your answer. E. Consider again your query from part (a). If pair sid, uid is returned by this query then there must exist at least one “path” that goes from from table S to table T (via relation R) and then from table T to table U (via relation Q). Note that there can be many such paths for a given pair sid, uid. Write an SQL query that returns records of the form tid, total where…Design a relational database schema from the Car Sharing IS domain class diagram. Output should look like image number 2Convert the following relation to 2NF, and then to 3NF. Show both conversions. (h, n, c, a, f, k, p, r, g, i, m, b, o, d, j, l, s, e) Functional Dependencies: p → j m, b → l h → g n → p n → o c → i n → j p → o h → d s → e a → r
- To illustrate, imagine you have a database containing the x, y locations and names of several eateries. We shall pretend that just the following kinds of inquiries are made: Whether or if a restaurant can be located at a certain address is the focus of the inquiry. Which indexing system is preferable: B-tree or R-tree? Why?No written by hand solution Consider a database schema ABCDEFG with the functional dependencies → G→F, → FE→D, → C→AB. List all keys for the scheme. I need a thorough explanation.Consider, for instance, the database management system that is used by an airline; such a system often has snapshot isolation as one of its many capabilities. I was hoping that you could provide me an example of a non-serializable execution that the airline is ready to endure in order to get better performance as a whole. If you could, that would be much appreciated.
- 4. (a) Why is normalization important in database design? Consider the universal relation R = {A, B, C, D, E, F, G, H, I, J} and the set of functional dependencies F = { AB → C, A → DE, B → F, F → GH, D → IJ }.What is the key for R? Decompose R into 2NF (Second Normal Form) and then 3NF (Third Normal Form) relations. (b) Consider a relation schema R = (X, Y, Z) on which the following functional dependencies hold: { XY → Z, Z → X }. Show that the schema R is not in BCNF (Boyce-Codd Normal Form) but it is in 3NF (Third Normal Form).Suppose we have a relational database with five tables. table key Attributes S(sid, A) Sid T(tid, B) Tid U(uid, C) Uid R(sid, tid, D) sid, tid Q(tid, uid, E) tid, uid Here R implements a many-to-many relationship between the entities implemented with tables S and T, and Q implements a many-to-many relationship between the entities implemented with tables T and U. A. Write an SQL query that returns all records of the form sid, uid where sid is the key of an S- record and uid is the key of a U-record and these two records are related through the relations R and Q. Use SELECT and not SELECT DISTINCT in your query. B. Write an SQL query that returns records of the form A, C where the A-value is from an S- record and the C-value is from a U-record and these two records are related through the relations R and Q. Use SELECT and not SELECT DISTINCT in your query. C. Could one of your queries from parts (a) and (b) return more records than the other? If so, which one? Justify your answer. D.…Suppose we have a relational database with five tables. table key Attributes S(sid, A) Sid T(tid, B) Tid U(uid, C) Uid R(sid, tid, D) sid, tid Q(tid, uid, E) tid, uid Here R implements a many-to-many relationship between the entities implemented with tables S and T, and Q implements a many-to-many relationship between the entities implemented with tables T and U. A. Write an SQL query that returns all records of the form sid, uid where sid is the key of an Srecord and uid is the key of a U-record and these two records are related through the relations R and Q. Use SELECT and not SELECT DISTINCT in your query. B. Write an SQL query that returns records of the form A, C where the A-value is from an Srecord and the C-value is from a U-record and these two records are related through the relations R and Q. Use SELECT and not SELECT DISTINCT in your query. C. Could one of your queries from parts (a) and (b) return…
- Using the Crow’s Foot Diagrram technique, draw a database design for the attached database.A database of application of wholesaler can be modelled by means of the relations price, in_stock and supplies. Price is a relation over products1…30, which models the association between prices and stock items. In_stock is a relation over productsN, which models the association between stock items and the current number in stock of product. Supplies is a relation over suppliersproducts which models the relation between a supplier and the product that is delivered by that supplier. If the current value of these relations are following:price = {(nut, 5), (bolt, 13), (screw, 3), (board, 25), (fastener, 23)}, in_stock = {(nut, 700), (bolt, 2200), (screw, 55), (board, 0), (fastener, 600)}, supplies = {(Thomas, nut), (Thomas, bolt), (Wilks, bolt), (Wilks, screw), (Wilks, board), (Wilks, fastener), (Rogers, board), (Rogers, fastener)}, then what is the value of the following expressions? i. {nut, bolt} priceii. dom(price 1…15).iii. rng(price 1…10).iv. dom(supplies; (in_stock {0})). v.…Discuss the CAP theorem and its implications for designing database architectures. Provide real-world examples to illustrate its principles.