ER Mapping : Convert the ER diagram into a relational database schema. For each relation, specify the primary keys and the foreign key(s) if any (50 pts) Upload you Relational Diagram here BANK BRANCHES BANK-BRANCH Code BranchNo Name Addr Addr LOANS ACCTS N N AccINa LoanNo Balance Amount ACCOUNT Туре LOAN Туре M M A-C L-C N N. SSN

ER Mapping : Convert the ER diagram into a relational database schema. For each relation, specify the primary keys and the foreign key(s) if any (50 pts) Upload you Relational Diagram here BANK BRANCHES BANK-BRANCH Code BranchNo Name Addr Addr LOANS ACCTS N N AccINa LoanNo Balance Amount ACCOUNT Туре LOAN Туре M M A-C L-C N N. SSN

Principles of Information Systems (MindTap Course List)

13th Edition

ISBN:9781305971776

Author:Ralph Stair, George Reynolds

Publisher:Ralph Stair, George Reynolds

Chapter5: Database Systems And Big Data

Section: Chapter Questions

Problem 14SAT

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DATABASE SYSTEMS 6.Any relation that is not part of the logical model, but is made visible to a user as a a)Absolute relation b)Natural relation c)Virtual relation d)Linear relation 7.Which of the following query is correct? a)SELECT ename FROM employee WHERE age>30 and WHERE age <40; b)SELECT ename FROM employee WHERE age>30 and age <40; c)None of these d)SELECT ename FROM employee WHERE age>30 and <40; 8.Produces a relation that contains all the rows of R1, or R2, or both R1 and R2, duplicate tuples being eliminated. R1 and R2 must be union-compatible. a)R1 left outer join R2 b)R1 X R2 c)R1 U R2 d)R1 - R2 9.Find the EmpIds of employees with name and city whose city is either RYK or LHR but empid must be greater than 5 a)SELECT empid, name,city FROM emp WHERE city = 'RYK' AND city ='LHR' AND empid >5); b)SELECT empid, name,city FROM emp WHERE city = 'RYK' OR city ='LHR' AND empid >5); c)SELECT empid, name,city FROM emp WHERE city = 'RYK' OR city ='LHR' OR…
Given the following relational schema of a database library (primary keys are underlined and foreign keys are preceded by #): Student(studentNumber, StudentName, studentAddress) Book(bookNumber, bookTitle, #authorNumber, #editorNumber, yearEdition) Author(authorNumber, authorName, authorAddress) Editor(editorNumber, editorName, editorAddress) Borrow(#studentNumber, #bookNumber, borrowDate, returnDate) Write the following queries in Relational Algebra: Find the details of students who borrowed the book titled ‘Database Management Systems’
Given the following relational schema of a database library (primary keys are underlined and foreign keys are preceded by #): Student(studentNumber, StudentName, studentAddress) Book(bookNumber, bookTitle, #authorNumber, #editorNumber, yearEdition) Author(authorNumber, authorName, authorAddress) Editor(editorNumber, editorName, editorAddress) Borrow(#studentNumber, #bookNumber, borrowDate, returnDate) Write the following queries in Relational Algebra: List the details (bookNumber, bookTitle) of books whose author’s name is ‘Ramakrishnan’
With the following Object Oriented Relational Database schema, select the attributes that a tuple in Teachers would have. create type Person (ID varchar(20) primary key, name varchar(20), address varchar(20)) ref from(ID); create table people of Person; create table students ( degree varchar (20)) inherits people ;create table teachers ( salary integer ) inherits people ; a. id b. salary c. degree d. name
DataBase Management System Determine the keys and superkeys of the relation R(ABCDEF) with FD's: (You MUST show the step-by-step of how you find superkeys and keys) ACE →D, AEF → B, CE → B, EF → D, and ABDF → E
Let R be a relational schema {A, B, C, D, E, F, G} and let F be the set of functional dependencies F = {AB→C, AC→B, BC→E, BC→G, AD→E, B→D, B→G, BE→A, AE→C, AE→G}. Perform the following (i) Remove Extraneous Attributes(ii) Remove redundant Functional dependencies(iii) Find the minimal Cover
Given the following relational schema of a database library (primary keys are underlined and foreign keys are preceded by #): Student(student Number, StudentName, studentAddress) Book(bookNumber, bookTitle, #authorNumber, #editorNumber, yearEdition) Author(authorNumber, authorName, authorAddress) Editor(editorNumber, editorName, editorAddress) Borrow(#studentNumber, #bookNumber, borrowDate, returnDate) 1) List the books (bookNumber) that have never been borrowed.
DATABASE SYSTEMS 16.Consider a relation R = (A,B,C,D,E) with the following functional dependencies: {C,E → D, D → B, C → A} and identify a candidate key. None of them {C,E,D} {C,E,B} {C,E} 17.A join in which tuples from R1 that do not have matching values in the common attributes of R2 are also included in the result relation. R1 left outer join R2 R1 semi join R R1 equi join R2 R1 natural join R2 18.When two transactions that access the same database items have their operations interleaved in a way that makes the values of some database items incorrect this problem is call? none of them dirty read summary problem the lost update problem 19.Protect the database from inconsistencies and data loss Database recovery Database Transaction & Concurrency control Concurrency control Concurrency control & Database recovery 20.Let E1 and E2 be two entity types in an entity relationship diagram. E1 have all three simple single-valued attributes while E2 have two simple…
114. A tool that can help designers understand the dependencies of database structures is a: a. dependency graph. b. data model. c. graphical display. d. None of the above is correct.
Create a conceptual schema for the following database domain. To make it completely clear, only one (the final) conceptual schema is expected. A book is described by ISBN and a title. ISBN uniquely identifies each book. A book consists of many chapters. A chapter is described by a chapter number, title and topic. Each chapter has a unique number within a book. A chapter belongs to one book only. A book is written by one or more authors. An author can write one or more books. An author is described by the first name, last name, date of birth, and country the author comes from. A triple of values: (first name, last name and date of birth) uniquely identifies each author. We have three types of books: textbooks, fiction books and biographies. A textbook is additionally described by the titles of course it has been applied to. A textbook can be applied to none or more courses. i need answer with diagram
When converting an ERD to a database design, Foreign key(s) for a M:N (many-many) relationship are inserted Into both the parent tables Into the many side of the relationship Into the one side of the relationship Into a new intersection (association) table
Let us consider the following relational database. Students(stuID, lastName, firstName, major, gpa) Faculty(facID, name, deptName, rank) Classes(classNhmber, facID, schedule, room) Enrolls(stuID, classNumber, grade) The primary keys are underlined. The referential integrity constraints are as follows: The column facID of relation Classes that references table Faculty, The column of stuID of relation Enrolls that references table Students, and The column classNumber of relation Enrolls that references table Classes. The following SQL statement is intended to define the table Students. However, this statement does not work correctly. CREAT TABLE Students( lastName VARCHAR(20), firstName VARCHAR(20), major VARCHAR(40) gpa DECIMAL(3,2), PRIMARY KEY(stuID)); However, this statement does not work correctly. Briefly explain why and list the corrected SQL statement.