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…
A:
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…
A:
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)…
A:
Q: . Consider the following relation with set of functional dependencies R(ABCDEF) ABC->D, ABD->E,…
A:
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 = {…
A:
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 →…
A:
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 =…
A:
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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- Using a graphics program, develop an entity-relationship diagram for a database application for an Internet bookstore where students buy textbooks from a salesperson and receive invoices for their purchases. Use Figure 5.5 as a guide.ISAM 3331: Introduction to Business Database Application Development Chapter 4 Assignment Fall 2020 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>o a >r h > g c> i h > d s>e16 We would like to design a database to maintain information about COURSES in a Faculty. Each COURSE has a code, name number of credit hours and the department that offers it. A COURSE may have zero, one, or many prerequisite COURSES. A COURSE may be a prerequisite for zero, one, or many COURSES 2"What is the degree of the relationship type'prerequisite of a. A unary (recursive) relationship O b. A binary relationship cA ternary relationship O d. This relationship is NOT exist O
- Suppose relations R(A,B) and S(B,C,D) are as followsIntroduction to database systems Question: Create an ER diagram relational schema and queries of a charity donation application that has classes as follows: Donor(name, address, mobile number, email) with subclasses: DonateMoney(name, amount, card number,security code) and DonateOther(item, name, address, mobile number, email), Volunteer(name, address, mobile number, email) and Organization(name, address, mobile number, email). The description of the application is as follows: the user can either donate money or donate other such as food, clothes,books, etc where he/she will have to first select the organization he/she is willing to donate to and then fill in the required information. The user could also volunteer by selecting what organization he/she wants to volunteer to and filling in the required information.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 tid, uid Q(tid, uid, E) 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.…
- WRITE THE CODE OF MYSQL IN PYTHON Create database and tables as given below by using Python. (a) Market database (b) Vendor: vendor_id integer, vendor_name varchar, license_start date, license_end date (c) Item: item_id integer, item_name varchar, item_type varchar, previous_price float, last_sold_date date (d) Auction: auction_id integer, vendor_id integer, item_id integer, price float Choose primary and foreign keys depending on the relations in Market database design.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…Q. The database interface of a library allows searching only for a single attribute (such as Titleor Author ) in each query. Your friend decided to extend it's functionality and wrote an algorithm that allowssearching for books that satisfy multiple predicates over single attributes in conjunction. He tells you the algorithmreuses the already implemented query functionality and works by intersecting the results ( book id's ) of queriesover single attributes.Which of the following assumptions on your friend's algorithm are plausible?a) Its worst-case run-time necessarily increases exponentially with respect to the number of attributes in thequery.b) Its worst-case run-time depends on the length of the longest result of the single-attribute queries.c) It might be implemented using an join.d) It might be implemented using sorting.
- Design an E-R Diagram for the following scenario. A relational database is to be designed for a medium sized Company dealing with industrial applications of computers. The Company delivers various computer products to its customers. Some products serve generic purpose, therefore, they are sold to various customers The Company has number of employees in each department; each is specialized in one particular area (i.e. consultant, programmer, support, system analyst, developer) but each area contains many employees. For product delivery, projects are carried out in an inter-disciplinary way. The Company starts one new project for each requested product. When a project is undertaken, a team is formed by grouping employees from different departments that can share different groups An employee is also assigned as the project manager of the team who is entirely and exclusively responsible for the control of the project. An employee can manage more than one team. Teams and projects are only…The database interface of a library allows searching only for a single attribute (such as Title or Author ) in each query. Your friend decided to extend it’s functionality and wrote an algorithm that allows searching for books that satisfy multiple predicates over single attributes in conjunction. He tells you the algorithm reuses the already implemented query functionality and works by intersecting the results ( book id’s ) of queries over single attributes.Which of the following assumptions on your friend’s algorithm are plausible?a) Its worst-case run-time necessarily increases exponentially with respect to the number of attributes in the query.b) Its worst-case run-time depends on the length of the longest result of the single-attribute queries.c) It might be implemented using an join.d) It might be implemented using sorting.Define ACID properties in the context of database transactions and explain their significance.