branch(branch_name, branch_city, assets) customer (ID, customer_name, customer_street, customer_city) loan (loan_лumber, branch_name, amoиnt) borrower (ID, loan_number) account (account number, branch_name, balance) depositor (ID, account_number) Figure 2.18 Bank database.

Q: Consider the following relations in the relational schema for a database that keeps track of…

A: Given: Consider the following relations in the relational schema for a database that keeps track of…

Q: Consider the database schema below for hotels in countries. A country have many hotels, and the same…

A: Lets see the solution.

Q: As depicted in the airline picture, a single seat can be assigned to two people if the two-step…

A: In point of fact, a database is what is used in order to store the data and information. The…

Q: QUESTION 3 Consider the following database schema for a library. Book (BookiD:int,…

A: Answer :-- True

Q: branch(branchsname, branch&city-assets}' customer (HD, tustomer name, customer street, customer…

A: Hey, since multiple sub-parts question posted, we will answer first three sub-part questions…

Q: Suppose you have the following relational database scheme for a real estate agency:   Real Estate…

A: Real Estate Office (officeID, street, city, postalCode)-> officeID is the primary key as primary…

Q: Suppose you have the following relational database scheme for a real estate agency:   Real Estate…

A: A primary key is an attribute in a database table that uniquely identifies each tuple (rows). A…

Q: Question: Consider the relation: R(A, B, C, D, E, F, G, H, I, J, K, L,M,N,O,P,Q), {A, B} is the…

A: R(A, B, C, D, E, F, G, H, I, J, K, L,M,N,O,P,Q) Candidate key: {A, B}, {C,D,E}Prime attributes Non…

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

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: .List the ID, street, city and rent information of the properties managed by the employees in the…

A: SQL is a structured query language, it is used to get data from the table. A table is the group of…

Q: Take a database, having FDs as: DOB->Age; Age->Eligibility; Name->RollNo; RollNo->Name;…

A: Here, we are going to find out the normal form for  the relation (RollNo, Name, DOB, Age). First we…

Q: Consider the relational database of Figure 1. What are the appropriate primary keys? employee…

A: Given query is  employee (person_name, street, city) works (person_name, company_name, salary)…

Q: Consider a database schema with a relation Emp whose attributes are as shownbelow, with types…

A: A schema is a collection of logical structures of data or schema objects. It contains entities and…

Q: Consider the database schema below for cities in countries. A country have many cities, and the same…

A: Domain Constraint: It specifies that the value taken b the attributes in a relation must contain an…

Q: Consider the relational database of Figure 3.19, where the primary keys areunderlined. Give an…

A: Creating the table – create table company(company_name text, city text);   Inserting the data –…

Q: Consider the given bank database schema given in question (2). Write a SQL trigger to carry out the…

A: The complete answer is given below with explanation.

Q: A database table is in 2nd Normal form if it is in 1 normal form and A. All non-key fields depend on…

A: A relational database is in 2NF , if it is firstly in 1NF that is free from Multivalued attribute…

Q: QUESTION 2 Consider the database schema below:    Company (CompnayID: integer, CompnayName:…

A: Definition of Candidate Key in DBMS: Candidate keys are super keys that don't have any redundant…

Q: QUESTION 6 Consider the following database schema for a library. Book (BooklD:int,…

A: The answer is True.

Q: Assume that two students are attempting to enroll in a course for which only one seat is available.…

A: Database Systems, also known as DBMS, is software that collects electronic and digital records to…

Q: A patient is identified by patient id, and admission date. A patient must be either an Emergency…

A: There are following Entities with attributes in the diagram: Patient PatientID Admission Date…

Q: b) Consider a simple relational database of Hospital Management System. (Underlined attributes…

A: 1. SELECT PatientID   FROM Patients As P , Hospital As H        WHERE P. PatientID  =H.PatientID…

Q: Consider the bank database of Figure 2.18. Assume that branch names and customer names uniquely…

A: Given: Consider the bank database of Figure 2.18. Assume that branch names and customer names…

Q: Consider the relational database of Figure 3.19, where the primary keys areunderlined. Give an…

A: Solution: Following is the SQL query that gives the name of the each company's whose employees have…

Q: Consider the relational database below, where the primary keys are underlined. employee…

A: As per guidelines, I'm supposed to answer first 3 part of the given questions. Repost the other…

Q: Consider the following database schema and specify the following queries or views in SQL.…

A: a)select SSN,name from EMPLOYEE where SSN in(select SSN from WORKON group by SSN having…

Q: Assume two students wish to enrol in the same course, but there is only space for one additional.…

A: Intro in the database, we have a concept of locks where when we try to update a record we need to…

Q: Consider the Insurance database given below, where the primary keys are underlined. Assume each…

A: i. select count (distinct *)from accidentwhere exists(select *from participated, personwhere…

Q: b1. Consider a relational database about real estate that is maintained by a real estate agency. The…

A: Given: (i) For each postal code in which there were at least three houses sold, find the postal code…

Q: Consider a database with the following schema: Person ( name, age, gender )        name is a key…

A: SUMMARY: -   Hence, We discussed all the points

Q: Given the following database schema: Customer(cid. , cname , rating, salary) Item(iid, iname , type…

A: Given :

Q: A database table is in 3rd normal form if A It is in 2d normal form (2NF) and in 1" normal form(INF)…

A: Actually, database is a used to stores the data/information.

Q: Suppose you have the following relational database scheme for a real estate agency: Real Estate…

A: Solution:

Q: Q1) B) Consider you have library database, with the following relations: Book(bookID, name, auther,…

A: The correct solution is given below with schema diagram and primary key, foreign keys

Q: Suppose that you are a manufacturer of product ABC, which is composed of parts A, B, and C. Each…

A: (a) An inventory update for PRODUCT and PART requires two or four database requests. One database…

Q: Consider a GRADE_BOOK database in which instructors within an academic department record points…

A: the solution is an given below :

Q: To map ERD to relational database, in which there is two entities and one to many relationship…

A: Here we have to store the data of entities and also the relationship that exists between them

Q: Consider a database with the following relations: Employee (Employee ID, Name, salary, startDate)…

A: The following SQL Query can be broken down into sub-queries: Sub-Query 1: Display Project by name…

Q: Given the relation below named Student_Registration , answer the following questions. S_id…

A: Relational Schema: A relational schema in a database gives a outline of how data is organized in a…

Q: Emp (Eno, Ename, Title, City) Project(Pno, Pname, Budget, City) Works(Eno, Pno, Resp,  Dur)…

A: Below i have answered:

Q: Given the following relational schema (Hint: the bold text represents a primary key),…

A: We are going to write relation algebra query which will find all course named Database Design and…

Q: UESTION 14   Consider the database schema below for cities in countries. A country have many…

A: No, violates key constraint. Key constraint is violated when value in the new tuple is already…

Q: Consider the Database schema on the relations   Courses (Number, Faculty, Course Title, Tutor)…

A: 1) 2)   3)

Q: Consider the relational database of Figure 3.19, where the primary keys areunderlined. Give an…

A: SQL – DB Creation and insertion queries create table employee(ID varchar(10) primary key ,…

Q: Consider the following scenario: two students are attempting to enrol for a course in which there is…

A: Educators can keep track of deadlines, instructions, add materials to send in, grade using rubrics,…

Q: Consider the following database schema for Players and contracts with different teams. Player (…

A: Question given -  Table schemas are given of two database tables. These tables are already in 1NF.…

Q: Assume there are two students who want to take a class but there is only place for one of them. What…

A: Intro: Database Management Systems, more often referred to as DBMS, are pieces of software that…

Q: Consider the following relations for a database that keeps track of auto sales in a car dealership…

A:

Q: Consider the following relation: Invoice(Order_ID, Order_Date, Customer_ID,…

A:

Q: Relational Database Consider the following relation: Invoice(Order_ID, Order_Date, Customer_ID,…

A:

Theoretical Computer Science

Usually, computer science seems like a practical field that involves studying, building, and working closely with computers. However, a subclass of this discipline also centers on the mathematical factors of the same. This is called theoretical computer science, and its focal point differentiates it from other branches of computer science: the rigorous mathematical approach it takes. This discipline falls under the umbrella of discrete mathematics, which is the study of countable or discontinuous mathematical structures.