Consider the following relational database schema: • Movies (title, year, length, studioName) A tuple (t, y, l, s) indicates that a movie with title t was produced by studio s in year y, and the length (in minutes) of the movie was l. • Stars (starName, title, year) A tuple (s, t, y) indicates that the star (i.e., actor or actress) with name s acted in a movie with title t in year y. Express each of the following queries in relational algebra (not in SQL): (a) Find the title and year of every pair of movies that have at least one star in common. (b) in any single year. Find the name of each star who never acted in more than one movie (c) the "Paramount" studio between 2000 and 2019. Find the name of each star who acted in every movie produced by

Q: Which ones are super keys for course? (a) course id (b) course id, title (c) course id, title,…

A: The attributes “course_id” and “title” can be used to identify the rows of “course” table uniquely.…

Q: The relational database schemas are as follows: department(dept-name, building, budget)…

A: Given : The relational database schemas are as follows:department(dept-name, building,…

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: 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: 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: Typically, a hospital patient receives medication that have been ordered by a particular doctor.…

A: Lets write the business logic first. The business rules between PATIENT and ORDER will be.• A…

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: 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: uestion Consider the following database schema. CUSTOMER (CID, NAME, STREET, CITY, STATE, AGE) SALE…

A:

Q: Suppose we have a database that stores people: their social security #, names, addresses, and…

A: Name of Schema: People Let it be represented as R.  Attributes: Social Security (Let it be A)…

Q: Construct a Relational Database Schema using this

A: Schema for the table “BANK” is as follows, Schema for the table “BANK_BRANCH” is as follows,…

Q: Consider the Computing equipment database schema defined as follows. Product (maker, model, type) PC…

A: Hey there, I am writing the required solution based on the above given question. Please do find the…

Q: Figure 2 shows an ER schema for a database that may be used to keep track of Pizza ordering system.…

A: Answer in step2 Note--since in E-R diagram cannot show foreign key so we are giving possible foreign…

Q: Map the database schema shown in the following figure into a relational database schema. grade…

A: Actually, A database is an organized collection of data, so that it can be easily accessed and…

Q: Consider the following relations for a database that keeps track of student enrollment in courses…

A: The answer has given below :

Q: Draw an ER diagram for the given scenario; Suppose that you are designing a schema to record…

A: ER diagram: It depicts various relations and their association in relational databases. It also…

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: ERD 2: Consider an online auction database system in which members (buyers and sellers) participate…

A:

Q: Given the following relation R and its functional dependencies: R(workerNumber, repairNumber,…

A: From the given R(workerNumber, repairNumber, workerName, machineNumber, spentTime, repairDate,…

Q: Consider the following relational database that represents books, publishers, and books published by…

A: As per our company guidelines we are supposed to answer ?️only first 3️⃣ sub-parts. Kindly repost…

Q: how could you construct your database and tables? Design your database and draw a database schema…

A: First step is to built the database schema using the following query- CREATE SCHEMA `organization`…

Q: Consider a database system for a Wholesale Management System. The data requirements are summarized…

A: ER Diagram: ER diagram consists of entities with their corresponding attributes and relationships…

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: 1A. Consider the bank database schema as below. loan (loan_number, branch_name, amount) account…

A: Solution is given below :

Q: I need the answer as soon as possible

A: The above question the 4 relation schema and explain and the find a weak entity in the below step

Q: f the coaches, bats belonging to each team, and which players have played on which teams. Note the…

A: Consider the following relational database for the Super Baseball League. It keeps track of teams in…

Q: Consider a database with the following schemas: Employee (Employee ID, Full_Name, Job_Title, Skills,…

A: Answer is given below-

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

A: Solution:

Q: Suppose that we have the following relational database schema named the seventh art. The bold…

A: The solution for the above given question is given below:

Q: Explain what normal form the relation is in. b) Apply normalization until the 3rd State reasons…

A: A)  From the given functional dependency, primary key for the given relation is (Title, Author)  The…

Q: 2.4.14 Exercises for Section 2.4 Exercise 2.4.1: This exercise builds upon the products schema of…

A:

Q: Database Systems Construct the relational model of the following scenario in soft . System…

A: The following images shows the answer..

Q: Describe different types of constraints that we can consider when we define the database schema

A: Constraints are the laws that a table's data columns must follow. These are used to restrict the…

Q: Consider the following relational database for the Super Baseball League. It keeps track of teams in…

A: Since the question has many subparts, the policy allows answering only of the first 3 parts.

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: Consider the following conceptual schema of a sample database domain that contains information about…

A: Solution :- A constraint that establishes the relationship between two sets of attributes in which…

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: Consider a database containing personnel information, including names, addresses, and salaries of…

A: First step is to built the database schema using the following query- CREATE SCHEMA `organization`…

Q: Discuss the trade-offs involved in database normalization, including the advantages and…

A: The database is an organized collection of structured data to make it easily accessible, manageable…

Q: With the following Object Oriented Relational Database schema, select the attributes that a tuple in…

A: Actually, A relational database is a type of  database that stores and provides access to data…

Q: Consider the following database schema for student game, where each team is led by a student of the…

A: Here there are given tables in schema based on that we have to find primary keys and foreign keys in…

Q: the following relational schema of a database library (primary keys are underlined and foreign keys…

A: The SQL query of the given scenario can be written as: Select bookNumber, bookTitle From Book Inner…

Q: Consider the following relations for a database that keeps track of student enrollment in courses…

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

Q: (c) The following relational schema form part of a database held for library borrowing system.…

A:

Q: Database Systems Question 4. A relation R is given which is R(A,B,C,D,E,F). It has the following…

A: We have given a relation R (A,B,C,D,E,F) and functional dependencies: AB -> CDE, B -> F.  We…

Q: Giving the following schema for a supermarket database, specify the domain constrains for each…

A: the answer to the following questions:-

Transaction Processing

Transaction processing is a computational style generally performed by server computers, which supports interactive applications (apps). Transaction processing is also known as information processing, which divides the work into indivisible and individual operations called transactions. The transaction is a set of tasks; a single task is considered as the minimum processing unit that cannot be divided again.