02 Il Screw 9.3.2019 80 HINTS : - The primary key of Orders is defined as ( orderNo, itemNo} The relation Orders is in 1NF. A- determine the type of relationships (generally) between: - orderNo: itemNo - date orderNo B- Find out the functional dependencies FD s of the relation Orders. C- Create a Data Base whose tables are in 2NF.

Q: 1. Consider the following relations: Student (snum: integer, sname: string, major: string, level:…

A: Student (snum: integer, sname: string, major: string, level: string, age: integer) Class (name:…

Q: Assume we have two relations R(A, B) and S(B, C). Assume that R = {(1, 2),(2, 3),(3, 4)}, and S =…

A: Answer:-

Q: 2. Consider the relations Students, Faculty, Courses, Rooms, Enrolled, Teaches, and MeetsIn defined…

A: Relational Model A relation is a table with columns and rows. It is based on the mathematical…

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: 2. Consider the relations Students, Faculty, Courses, Rooms, Enrolled, Teaches, and MeetsIn defined…

A: We are provided with 7 relations : Students, Faculty, Courses, Rooms, Enrolled, Teaches, MeetsIn…

Q: 93. ODL supports which of the following types of association relationships? a. Unary b. Unary and…

A: Given that, ODL supports which of the following types of association relationships? a. Unary b.…

Q: 93. ODL supports which of the following types of association relationships? a. Unary b. Unary and…

A: Here is the solution which is mentioned below:

Q: Let relations r1(A, B, C) and r2(C, D, E) have the following properties: r1 has20,000 tuples, r2 has…

A: r1 requires 800 blocks and r2 requires 1500 blocks. Let assume M pages of memory. If M > 800, the…

Q: QUESTION 8 Here's a relation (R), its attributes, and its functional dependencies (F): R(A, B, C, D,…

A: A functional dependency is defined as if in a relation A→B , the values in attribute A have the same…

Q: Let relations r1(A, B, C) and r2(C, D, E) have the following properties: r1 has20,000 tuples, r2 has…

A: Block nested-loop join: The “r1” needs (20000/25)=800 blocks and “r2” needs (45000/30)=1500 blocks.…

Q: Exercise 8.7 If you were about to create an index on a relation, what considerations would guide…

A: The answer to each question is given below. 1. The choice of the primary key is made based on the…

Q: E4.5a Using the AIRPORT KLX Table, describe an example that illustrates the insertion anomaly. E4.5b…

A: E4.5a solution :-If a new terminal needs be added which is not operational , no Airline has been…

Q: the following dependencies, convert the following  schema to 3NF   PatientNo, PrescriptionNo ->…

A: It is defined as a relation is in third normal form, if there is no transitive dependency for…

Q: 114. A tool that can help designers understand the dependencies of database structures is a: a.…

A: Given data: A tool that can help designers understand the dependencies of database structures is…

Q: 16.Consider a relation R = (A,B,C,D,E) with the following functional dependencies: {C,E → D,   D →…

A: Given that 16.Consider a relation R = (A,B,C,D,E) with the following functional dependencies: {C,E →…

Q: 4.2)) Assume we have two relations R(a,b) and S(b.c). All three attributes (a, b, and c) are integer…

A: given: Assume we have two relations R(A, B) and S(B, C). All three attributes (A, B and C) are…

Q: DATABASE SYSTEM A relation R is given which is R(A,B,C,D,E). It has the following functional…

A: BC  -> ADE , D -> B primary key is (BC) because: Closure of (BC)+ = {A, B, C, D, E} here, the…

Q: $1 S2 $3 S4 S5 Answer the following question according to the dependency diagram shown in the above…

A:

Q: Let relations r1(A, B, C) and r2(C, D, E) have the following properties: r1 has20,000 tuples, r2 has…

A: A nested loop join is a naïve algorithm that contains a pair of nested for loops. To perform this…

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

A: The set of attributes PEF, QFR is the candidate keys for the given relation R. Therefore, the right…

Q: Identify all the functional dependencies in the following relation with columns A, B, C, and D…

A: A functional dependency is a relationship between two columns/attributes, in a table. In a relation…

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: Question 5: R = (A,B,C,D,E) F(A->C,C D, B->E) If a Dependency preservation?

A: It is defined as a binary relation, that is finite, symmetric, and reflexive;  i.e. a finite…

Q: Question 5: R = (A,B,C,D,E) %3D F(A->C,C D, B->E) If this a Dependency prese

A: Defined the dependency preservation

Q: Suppose a database has the following relations: · ORDER_T (Order_ID, Order_Date, Customer_ID,…

A: The answer is

Q: A- determine the type of relationships (generally) between: - orderNo : itemNo - date : orderNo B-…

A: The given problem is related to database normalization where the normalization is a process of…

Q: Identify all the functional dependencies in the following relation with columns A, B, C, and D…

A: a.A→B : doesn't hold. Since values that repeats in A doesn't have same value in B b.A→C : doesn't…

Q: (Q.17) Consider this functional dependencies {AB->C, BC->D, CD->E, E->F} Which of the following…

A: Given: {AB->C, BC->D, CD->E, E->F}

Q: (Q.17) Consider this functional dependencies {AB->C, BC->D, CD->E, E->F} Which of the following…

A: Consider this functional dependencies {AB->C, BC->D, CD->E, E->F} Which of the following…

Q: (Q.17) Consider this functional dependencies   {AB->C, BC->D, CD->E, E->F}   Which of the…

A: Given: {AB->C, BC->D, CD->E, E->F}

Q: (Q.17) Consider this functional dependencies   {AB->C, BC->D, CD->E, E->F}   Which of the…

A: Given: {AB->C, BC->D, CD->E, E->F}

Q: (Q.17) Consider this functional dependencies   {AB->C, BC->D, CD->E, E->F}   Which of the…

A: Answer: Functional Dependency: Functional Dependency (FD) is a limitation that decides the…

Q: (Q.17) Consider this functional dependencies {AB->C, BC->D, CD->E, E->F} Which of the following…

A: Here in this question we have given some FDs and we have asked which of the following FDs are…

Q: (Q.17) Consider this functional dependencies {AB->C, BC->D, CD->E, E->F} Which of the following…

A: Answer of the given question:  Functional Dependency (FD) is a requirement that decides the…

Q: (Q.17) Consider this functional dependencies   {AB->C, BC->D, CD->E, E->F}   Which of the…

A: ANSWER OF THE GIVEN QUESTION: Functional Dependency (FD) is a requirement that decides the…

Q: Q.17) Consider this functional dependencies   {AB->C, BC->D, CD->E, E->F}   Which of the…

A: Introduction :Given , A functional Dependency set , {AB->C, BC->D, CD->E, E->F} We have…

Q: (Q.17) Consider this functional dependencies {AB->C, BC->D, CD->E, E->F} Which of the following…

A: For every options given, find the closure set of left side of each FD. If the closure set of left…

Q: Exercise 7.2.1: Write the following constraints for attributes of the relation 324 CHAPTER 7.…

A: GIVEN: Movies (title, year, length, genre, studioName, producerC#)a) The year cannot be before 1915.…

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

A: Answer: Option (d) PEF, QFR

Q: Consider the following relational database schema that contains information about employees and…

A: {pid,pname} {pid,pname,budget} {pname,managerid} {pname,budget,managerid}

Q: QUESTION 9 A relation R(M, N, O, P, Q) is in 2NF and has the following functional dependencies: • MN…

A: Dear Student, As MN derives O and O derives P and also Q thus MN derives M,N,O,P,Q. Thus MN is a…

Q: Which of the followings can possibly be a canonical cover Fc of a set F of functional dependencies?…

A: The answer to this question is option b) {A → D, AB → C, D → B} and d) {A → C, D → B, AB → C}

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: Question 5: R = (A,B,C,D,E) F(A>C, C D,B->E) If this a Dependency preser

A: Defined the given relation dependency preservation

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

A:

Q: (Q.17) Consider this functional dependencies {AB->C, BC->D, CD->E, E->F} Which of the following…

A: Given: {AB->C, BC->D, CD->E, E->F}

Q: Let R(A, B, C, D, E, F) be a relation with FD's: {D → C, C → D, D → E, C → E, E → AD, AF → E, D → B}…

A:

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: Consider a database that consists of the following relations. SUPPLIER(Sno, Sname)) PART(Pno, Pname)…

A: SUPPLIER(Sno, Sname)) PART (Pno, Pname) PROJECT(Jno, Jname) SUPPLY (Sne, Pne, Jno)

Q: Given relation R(A,B,C,D,E) with dependencies АВ -> с CD -> E DE -> B The candidate key of this…

A: Candidate Key is minimal set of attributes of a relation which can be used to identify a tuple…